diff --git a/artifacts/api-server/src/routes/executive-meetings.ts b/artifacts/api-server/src/routes/executive-meetings.ts
index ca226a60..7f57586d 100644
--- a/artifacts/api-server/src/routes/executive-meetings.ts
+++ b/artifacts/api-server/src/routes/executive-meetings.ts
@@ -156,6 +156,22 @@ const requireAdminAudit = makeRequireRoles(ADMIN_AUDIT_ROLES);
 
 // ---------- Zod schemas ----------
 
+// Allowed values for the row-highlight overlay on the daily schedule.
+// Mirrors the ROW_COLOR_OPTIONS palette in the frontend (
+// artifacts/tx-os/src/pages/executive-meetings.tsx). NULL/omitted on the
+// wire = "default" (no tint). Kept as a literal whitelist (not a string
+// max-length check) so an unknown key is rejected with 400 instead of
+// silently persisting a colour the UI cannot render.
+const ROW_COLOR_KEYS = [
+  "red",
+  "amber",
+  "green",
+  "blue",
+  "violet",
+  "gray",
+] as const;
+const rowColorSchema = z.enum(ROW_COLOR_KEYS).nullable();
+
 const dateSchema = z.string().regex(/^\d{4}-\d{2}-\d{2}$/, "expected YYYY-MM-DD");
 
 const DATE_RE_LOCAL = /^\d{4}-\d{2}-\d{2}$/;
@@ -257,6 +273,11 @@ const meetingPatchSchema = z
     notes: meetingBaseFields.notes,
     attendees: z.array(attendeeSchema).optional(),
     merge: meetingMergeSchema.optional(),
+    // Row-highlight colour (#288). null = clear back to default (no tint).
+    // Optional so this PATCH endpoint stays usable for callers that only
+    // want to edit other fields. Validated against the ROW_COLOR_KEYS
+    // whitelist above, so an unknown key returns 400 instead of writing.
+    rowColor: rowColorSchema.optional(),
   })
   .refine(
     (v) => !v.startTime || !v.endTime || v.startTime <= v.endTime,
@@ -674,6 +695,11 @@ router.patch(
             updateValues.mergeText = sanitizeRichText(data.merge.mergeText);
           }
         }
+        // #288: rowColor is whitelisted upstream; null = clear back to
+        // default (no tint).
+        if (data.rowColor !== undefined) {
+          updateValues.rowColor = data.rowColor;
+        }
 
         if (Object.keys(updateValues).length > 1) {
           await tx
diff --git a/artifacts/api-server/tests/executive-meetings-row-color.test.mjs b/artifacts/api-server/tests/executive-meetings-row-color.test.mjs
new file mode 100644
index 00000000..485e597f
--- /dev/null
+++ b/artifacts/api-server/tests/executive-meetings-row-color.test.mjs
@@ -0,0 +1,352 @@
+// API contract tests for the shared row-colour overlay added by task #288
+// to the executive-meetings PATCH endpoint. Covers:
+//
+//   1. Setting a colour persists it on the row and round-trips back
+//      through GET (server is the source of truth, not the browser).
+//   2. Setting `rowColor: null` clears the colour back to default
+//      without disturbing other fields on the row.
+//   3. Unknown / off-palette colour keys are rejected with 400 and the
+//      stored value does not change.
+//   4. A non-mutate user (executive_viewer role) gets 403 — they can
+//      see the colour but cannot change it.
+//   5. Each successful change writes an audit-log row attributed to the
+//      acting user, with the old + new colour captured so the audit
+//      trail mirrors other meeting field edits.
+//
+// Cleanup runs in `after` regardless of which assertions failed so
+// repeated runs of this file against the same DB don't leak rows.
+
+import { test, before, after } from "node:test";
+import assert from "node:assert/strict";
+import pg from "pg";
+
+const API_BASE = process.env.TEST_API_BASE ?? "http://localhost:8080";
+const DATABASE_URL = process.env.DATABASE_URL;
+if (!DATABASE_URL) {
+  throw new Error("DATABASE_URL must be set to run these tests");
+}
+
+const TEST_PASSWORD = "TestPass123!";
+const TEST_PASSWORD_HASH =
+  "$2b$10$Bs636ukPMyz01nKrsi.5m.JlDXSN22AVCvn8cgPWWDbo5yJRQX2vu";
+
+const pool = new pg.Pool({ connectionString: DATABASE_URL });
+
+const created = {
+  userIds: [],
+  meetingIds: [],
+};
+
+function uniqueName(prefix) {
+  return `${prefix}_${Date.now().toString(36)}_${Math.random()
+    .toString(36)
+    .slice(2, 8)}`;
+}
+
+async function createUser(prefix, roleName) {
+  const username = uniqueName(prefix);
+  const { rows } = await pool.query(
+    `INSERT INTO users (username, email, password_hash, display_name_en, preferred_language, is_active)
+     VALUES ($1, $2, $3, 'EM RowColor Test', 'en', true) RETURNING id`,
+    [username, `${username}@example.com`, TEST_PASSWORD_HASH],
+  );
+  const id = rows[0].id;
+  created.userIds.push(id);
+  for (const r of ["user", roleName]) {
+    await pool.query(
+      `INSERT INTO user_roles (user_id, role_id)
+       SELECT $1, id FROM roles WHERE name = $2
+       ON CONFLICT DO NOTHING`,
+      [id, r],
+    );
+  }
+  return { id, username };
+}
+
+function extractCookie(res) {
+  const setCookie = res.headers.get("set-cookie");
+  if (!setCookie) return null;
+  return (
+    setCookie
+      .split(",")
+      .map((c) => c.split(";")[0].trim())
+      .find((c) => c.startsWith("connect.sid=")) ?? null
+  );
+}
+
+async function login(username, password) {
+  const res = await fetch(`${API_BASE}/api/auth/login`, {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: JSON.stringify({ username, password }),
+  });
+  assert.equal(res.status, 200, `login should succeed for ${username}`);
+  const cookie = extractCookie(res);
+  assert.ok(cookie, "login response should set a session cookie");
+  return cookie;
+}
+
+async function api(cookie, method, path, body) {
+  const init = {
+    method,
+    headers: {
+      Cookie: cookie,
+      ...(body !== undefined ? { "Content-Type": "application/json" } : {}),
+    },
+  };
+  if (body !== undefined) init.body = JSON.stringify(body);
+  return fetch(`${API_BASE}${path}`, init);
+}
+
+let adminCookie = null;
+let adminUserId = null;
+let viewerCookie = null;
+
+const today = new Date().toISOString().slice(0, 10);
+
+async function createMeeting(titleEn, titleAr) {
+  const res = await api(adminCookie, "POST", "/api/executive-meetings", {
+    titleAr,
+    titleEn,
+    meetingDate: today,
+    startTime: "09:00",
+    endTime: "10:00",
+    platform: "none",
+    status: "scheduled",
+    isHighlighted: 0,
+    attendees: [
+      { name: "Tester", attendanceType: "internal", sortOrder: 0 },
+    ],
+  });
+  assert.equal(res.status, 201, "create meeting should succeed");
+  const meeting = await res.json();
+  created.meetingIds.push(meeting.id);
+  return meeting;
+}
+
+before(async () => {
+  adminCookie = await login("admin", "admin123");
+  // Capture the admin's user id so we can assert audit attribution.
+  const meRes = await api(adminCookie, "GET", "/api/auth/me");
+  if (meRes.status === 200) {
+    const me = await meRes.json();
+    adminUserId = me?.id ?? me?.user?.id ?? null;
+  }
+  // executive_viewer is in READ_ROLES but NOT in MUTATE_ROLES, so
+  // requireExecutiveAccess passes and we hit requireMutate's 403.
+  // This isolates the "non-editor" case from the bare "no executive
+  // access at all" case (which would 403 earlier in the chain).
+  const viewer = await createUser("em_rowcolor_viewer", "executive_viewer");
+  viewerCookie = await login(viewer.username, TEST_PASSWORD);
+});
+
+after(async () => {
+  if (created.meetingIds.length > 0) {
+    await pool.query(
+      `DELETE FROM executive_meeting_attendees WHERE meeting_id = ANY($1::int[])`,
+      [created.meetingIds],
+    );
+    await pool.query(
+      `DELETE FROM executive_meeting_audit_logs WHERE entity_type = 'meeting' AND entity_id = ANY($1::int[])`,
+      [created.meetingIds],
+    );
+    await pool.query(
+      `DELETE FROM executive_meetings WHERE id = ANY($1::int[])`,
+      [created.meetingIds],
+    );
+  }
+  if (created.userIds.length > 0) {
+    await pool.query(
+      `DELETE FROM user_roles WHERE user_id = ANY($1::int[])`,
+      [created.userIds],
+    );
+    await pool.query(`DELETE FROM users WHERE id = ANY($1::int[])`, [
+      created.userIds,
+    ]);
+  }
+  await pool.end();
+});
+
+test("PATCH rowColor: setting a colour persists and round-trips via GET", async () => {
+  const meeting = await createMeeting("RowColor set", "تعيين لون الصف");
+  // Sanity: a fresh row has no colour set.
+  assert.equal(
+    meeting.rowColor ?? null,
+    null,
+    "fresh meeting should default to no colour",
+  );
+
+  const patch = await api(
+    adminCookie,
+    "PATCH",
+    `/api/executive-meetings/${meeting.id}`,
+    { rowColor: "red" },
+  );
+  assert.equal(patch.status, 200, "PATCH rowColor should succeed");
+  const patched = await patch.json();
+  assert.equal(patched.rowColor, "red", "PATCH response includes new colour");
+
+  // The day GET is what every other client uses to refresh after the
+  // socket fires, so it MUST surface the new colour. This is the
+  // assertion that proves the colour is shared with other viewers.
+  const day = await api(
+    adminCookie,
+    "GET",
+    `/api/executive-meetings?date=${today}`,
+  );
+  assert.equal(day.status, 200);
+  const body = await day.json();
+  const row = body.meetings.find((m) => m.id === meeting.id);
+  assert.ok(row, "patched meeting should appear in GET ?date=");
+  assert.equal(row.rowColor, "red", "GET reflects the persisted colour");
+});
+
+test("PATCH rowColor: { rowColor: null } clears the colour without touching other fields", async () => {
+  const meeting = await createMeeting("RowColor clear", "مسح لون الصف");
+
+  // Seed with a colour so we have something to clear.
+  const seed = await api(
+    adminCookie,
+    "PATCH",
+    `/api/executive-meetings/${meeting.id}`,
+    { rowColor: "blue" },
+  );
+  assert.equal(seed.status, 200);
+
+  const clear = await api(
+    adminCookie,
+    "PATCH",
+    `/api/executive-meetings/${meeting.id}`,
+    { rowColor: null },
+  );
+  assert.equal(clear.status, 200, "clearing rowColor should succeed");
+  const cleared = await clear.json();
+  assert.equal(cleared.rowColor, null, "rowColor is null after clear");
+  // Other fields stay intact through the clear — guards against a
+  // future regression where the PATCH handler accidentally overwrites
+  // unrelated columns when only rowColor is sent.
+  assert.equal(cleared.titleEn, "RowColor clear");
+  assert.equal(cleared.startTime, "09:00:00");
+  assert.equal(cleared.endTime, "10:00:00");
+});
+
+test("PATCH rowColor: unknown / off-palette colour key is rejected with 400 and does not change the row", async () => {
+  const meeting = await createMeeting("RowColor invalid", "لون غير صالح");
+  // Seed with a known good colour so we can prove the bad request
+  // didn't silently overwrite it.
+  const seed = await api(
+    adminCookie,
+    "PATCH",
+    `/api/executive-meetings/${meeting.id}`,
+    { rowColor: "green" },
+  );
+  assert.equal(seed.status, 200);
+
+  for (const bad of ["fuchsia", "RED", "", "default", " red "]) {
+    const res = await api(
+      adminCookie,
+      "PATCH",
+      `/api/executive-meetings/${meeting.id}`,
+      { rowColor: bad },
+    );
+    assert.equal(
+      res.status,
+      400,
+      `unknown rowColor key "${bad}" should be rejected with 400`,
+    );
+    const body = await res.json();
+    assert.equal(body.code, "validation");
+  }
+
+  // Confirm the row still has the seeded colour, not anything else.
+  const day = await api(
+    adminCookie,
+    "GET",
+    `/api/executive-meetings?date=${today}`,
+  );
+  const row = (await day.json()).meetings.find((m) => m.id === meeting.id);
+  assert.equal(row.rowColor, "green", "row colour unchanged after 400s");
+});
+
+test("PATCH rowColor: non-mutate viewer role gets 403 and the row colour is unchanged", async () => {
+  const meeting = await createMeeting(
+    "RowColor viewer guard",
+    "حماية المشاهد من تغيير اللون",
+  );
+  // Admin sets a colour first so the viewer's failed PATCH would be
+  // visible if the guard were missing.
+  const seed = await api(
+    adminCookie,
+    "PATCH",
+    `/api/executive-meetings/${meeting.id}`,
+    { rowColor: "amber" },
+  );
+  assert.equal(seed.status, 200);
+
+  const blocked = await api(
+    viewerCookie,
+    "PATCH",
+    `/api/executive-meetings/${meeting.id}`,
+    { rowColor: "violet" },
+  );
+  assert.equal(blocked.status, 403, "viewer role should be blocked");
+
+  // Viewer can still GET — they need to *see* the colour, just not change it.
+  const day = await api(
+    viewerCookie,
+    "GET",
+    `/api/executive-meetings?date=${today}`,
+  );
+  assert.equal(day.status, 200);
+  const row = (await day.json()).meetings.find((m) => m.id === meeting.id);
+  assert.equal(
+    row.rowColor,
+    "amber",
+    "viewer's blocked PATCH did not change the persisted colour",
+  );
+});
+
+test("PATCH rowColor: each successful change writes an audit row attributed to the acting user", async () => {
+  const meeting = await createMeeting("RowColor audit", "سجل لون الصف");
+
+  const set = await api(
+    adminCookie,
+    "PATCH",
+    `/api/executive-meetings/${meeting.id}`,
+    { rowColor: "violet" },
+  );
+  assert.equal(set.status, 200);
+
+  // The audit log is read by the admin section. Pull all entries for
+  // this meeting and assert that the most recent one captures the
+  // colour change. We don't strictly enforce ordering of unrelated
+  // create / patch entries — we just need a row whose newValue.rowColor
+  // is "violet" and whose performedBy is the admin.
+  const { rows: auditRows } = await pool.query(
+    `SELECT action, entity_type, entity_id, new_value, performed_by
+       FROM executive_meeting_audit_logs
+      WHERE entity_type = 'meeting' AND entity_id = $1
+      ORDER BY id DESC`,
+    [meeting.id],
+  );
+  const colorEntry = auditRows.find((r) => {
+    const nv = r.new_value;
+    return (
+      nv &&
+      typeof nv === "object" &&
+      "rowColor" in nv &&
+      nv.rowColor === "violet"
+    );
+  });
+  assert.ok(
+    colorEntry,
+    "audit log should contain an entry whose newValue.rowColor is the colour we just set",
+  );
+  if (adminUserId != null) {
+    assert.equal(
+      colorEntry.performed_by,
+      adminUserId,
+      "audit row attributed to the admin who made the change",
+    );
+  }
+});
diff --git a/artifacts/tx-os/public/opengraph.jpg b/artifacts/tx-os/public/opengraph.jpg
index 3c74bc77..2f9a2f36 100644
Binary files a/artifacts/tx-os/public/opengraph.jpg and b/artifacts/tx-os/public/opengraph.jpg differ
diff --git a/artifacts/tx-os/src/pages/executive-meetings.tsx b/artifacts/tx-os/src/pages/executive-meetings.tsx
index 99d0498d..1e6f4ff2 100644
--- a/artifacts/tx-os/src/pages/executive-meetings.tsx
+++ b/artifacts/tx-os/src/pages/executive-meetings.tsx
@@ -140,6 +140,10 @@ type Meeting = {
   mergeStartColumn?: ColumnId | null;
   mergeEndColumn?: ColumnId | null;
   mergeText?: string | null;
+  // Shared row-highlight colour (#288). Stored on the meeting row so it
+  // is the same for every viewer. NULL/missing = "default" (no tint).
+  // Allowed values come from ROW_COLOR_OPTIONS below.
+  rowColor?: string | null;
 };
 
 type DayResponse = { date: string; meetings: Meeting[] };
@@ -742,9 +746,20 @@ function ScheduleSection({
   const { toast } = useToast();
   const tableStyle = buildFontStyle(font);
   const setColumns = onColumnsChange;
-  const [rowColors, setRowColors] = useState<Record<number, string>>(() =>
-    readJsonFromStorage<Record<number, string>>(ROW_COLORS_STORAGE_KEY, {}),
-  );
+  // #288: Row highlight colours are now stored on the meeting row in the
+  // DB and shared across every viewer. Derive a quick lookup from the
+  // current `meetings` prop so the rest of this component (which still
+  // calls `rowColors[m.id] ?? "default"`) keeps working unchanged.
+  // Mutations go through `setRowColor` below, which PATCHes the meeting
+  // and then refetches via the day-changed query invalidation — no
+  // separate client-side cache to keep in sync.
+  const rowColors = useMemo<Record<number, string>>(() => {
+    const out: Record<number, string> = {};
+    for (const m of meetings) {
+      if (m.rowColor) out[m.id] = m.rowColor;
+    }
+    return out;
+  }, [meetings]);
 
   // Global "Edit / View" toggle for the schedule. The default is view mode
   // (no edit affordances). When a user with edit permission flips it on,
@@ -1525,9 +1540,141 @@ function ScheduleSection({
   // write effect here would silently drop edits made from the Settings
   // tab while ScheduleSection is unmounted.
 
+  // #288: row colours moved to the meeting record on the server, so the
+  // old `writeJsonToStorage(ROW_COLORS_STORAGE_KEY, rowColors)` effect is
+  // gone. The client-side state is now derived from the `meetings` prop
+  // (see the `rowColors` memo above).
+
+  // #288: Best-effort migration of legacy per-device colours into the
+  // shared server-side field. Runs every time the loaded day's meetings
+  // change, so colours saved on a date the user hasn't visited yet
+  // survive in localStorage and get migrated when they navigate there.
+  // Rules:
+  //   - drops invalid keys / unknown colours immediately (those were
+  //     never going to migrate anywhere),
+  //   - skips ids whose server row already has a colour (don't overwrite
+  //     someone else's choice),
+  //   - PATCHes ids present in the currently-loaded day,
+  //   - keeps ids whose meeting we haven't seen yet AND ids whose PATCH
+  //     failed so the next effect run / next visit can retry,
+  //   - removes the localStorage key entirely once nothing is left.
+  // Concurrency: a Set of in-flight ids prevents the same id from being
+  // PATCHed twice if the effect re-fires while a request is pending.
+  const migrationInFlightRef = useRef<Set<number>>(new Set());
   useEffect(() => {
-    writeJsonToStorage(ROW_COLORS_STORAGE_KEY, rowColors);
-  }, [rowColors]);
+    if (!canMutate) return;
+    if (typeof window === "undefined") return;
+    let raw: string | null = null;
+    try {
+      raw = window.localStorage.getItem(ROW_COLORS_STORAGE_KEY);
+    } catch {
+      return;
+    }
+    if (!raw) return;
+    let parsed: unknown;
+    try {
+      parsed = JSON.parse(raw);
+    } catch {
+      try {
+        window.localStorage.removeItem(ROW_COLORS_STORAGE_KEY);
+      } catch {
+        /* ignore */
+      }
+      return;
+    }
+    if (!parsed || typeof parsed !== "object" || Array.isArray(parsed)) {
+      try {
+        window.localStorage.removeItem(ROW_COLORS_STORAGE_KEY);
+      } catch {
+        /* ignore */
+      }
+      return;
+    }
+    const allowedKeys = new Set(
+      ROW_COLOR_OPTIONS.filter((o) => o.key !== "default").map((o) => o.key),
+    );
+    const meetingById = new Map(meetings.map((m) => [m.id, m]));
+    const remaining: Record<string, string> = {};
+    const toMigrate: Array<{ id: number; color: string }> = [];
+    for (const [idStr, color] of Object.entries(
+      parsed as Record<string, unknown>,
+    )) {
+      const id = Number(idStr);
+      // Drop entries that could never apply: invalid id or unknown
+      // colour key. Keeping them would just keep the localStorage key
+      // alive forever.
+      if (!Number.isInteger(id) || id <= 0) continue;
+      if (typeof color !== "string" || !allowedKeys.has(color)) continue;
+      const m = meetingById.get(id);
+      if (!m) {
+        // Not in this day's payload — could be a future day the user
+        // hasn't visited yet. Preserve so a later effect run picks it up.
+        remaining[idStr] = color;
+        continue;
+      }
+      if (m.rowColor) continue; // server already has a colour, drop ours
+      if (migrationInFlightRef.current.has(id)) {
+        remaining[idStr] = color; // already PATCHing — wait for next tick
+        continue;
+      }
+      toMigrate.push({ id, color });
+    }
+    if (toMigrate.length === 0) {
+      // Either everything left over is for unseen days, or there's
+      // nothing left at all.
+      try {
+        if (Object.keys(remaining).length === 0) {
+          window.localStorage.removeItem(ROW_COLORS_STORAGE_KEY);
+        } else {
+          // Rewrite to compact away the dropped (invalid / already-set)
+          // entries so we don't keep iterating them forever.
+          window.localStorage.setItem(
+            ROW_COLORS_STORAGE_KEY,
+            JSON.stringify(remaining),
+          );
+        }
+      } catch {
+        /* ignore */
+      }
+      return;
+    }
+    for (const c of toMigrate) migrationInFlightRef.current.add(c.id);
+    void (async () => {
+      const results = await Promise.allSettled(
+        toMigrate.map((c) =>
+          apiJson(`/api/executive-meetings/${c.id}`, {
+            method: "PATCH",
+            body: { rowColor: c.color },
+          }),
+        ),
+      );
+      // Failed PATCHes get folded back into `remaining` so we can
+      // retry next time. Successful ones are dropped.
+      const finalRemaining: Record<string, string> = { ...remaining };
+      results.forEach((res, i) => {
+        const c = toMigrate[i];
+        migrationInFlightRef.current.delete(c.id);
+        if (res.status === "rejected") {
+          finalRemaining[String(c.id)] = c.color;
+        }
+      });
+      try {
+        if (Object.keys(finalRemaining).length === 0) {
+          window.localStorage.removeItem(ROW_COLORS_STORAGE_KEY);
+        } else {
+          window.localStorage.setItem(
+            ROW_COLORS_STORAGE_KEY,
+            JSON.stringify(finalRemaining),
+          );
+        }
+      } catch {
+        /* ignore */
+      }
+      void qc.invalidateQueries({
+        queryKey: ["/api/executive-meetings", date],
+      });
+    })();
+  }, [canMutate, meetings, qc, date]);
 
   const visibleColumns = columns.filter((c) => c.visible);
 
@@ -1544,17 +1691,34 @@ function ScheduleSection({
     );
   }, []);
 
-  const setRowColor = useCallback((meetingId: number, colorKey: string) => {
-    setRowColors((prev) => {
-      const next = { ...prev };
-      if (colorKey === "default") {
-        delete next[meetingId];
-      } else {
-        next[meetingId] = colorKey;
+  // #288: persist a row colour by PATCHing the meeting. The server
+  // validates the key against the ROW_COLOR_KEYS whitelist, writes an
+  // audit log entry, and emits a realtime day-changed event so other
+  // open Tx OS tabs/devices refetch and pick up the new colour. The
+  // local list refreshes through the same react-query invalidation
+  // (`executive-meetings:day` keyed by `date`) used by every other
+  // mutation on this page. We do an optimistic toast-based rollback if
+  // the request fails so the user always knows the colour didn't stick.
+  const setRowColor = useCallback(
+    async (meetingId: number, colorKey: string) => {
+      const wireValue = colorKey === "default" ? null : colorKey;
+      try {
+        await apiJson(`/api/executive-meetings/${meetingId}`, {
+          method: "PATCH",
+          body: { rowColor: wireValue },
+        });
+        await qc.invalidateQueries({ queryKey: ["/api/executive-meetings", date] });
+      } catch (err) {
+        const msg = err instanceof Error ? err.message : String(err);
+        toast({
+          title: t("common.error"),
+          description: msg,
+          variant: "destructive",
+        });
       }
-      return next;
-    });
-  }, []);
+    },
+    [qc, date, toast, t],
+  );
 
   // Responsive breakpoints:
   //   < md (<768px)   → stacked card layout (phones)
diff --git a/lib/db/src/schema/executive-meetings.ts b/lib/db/src/schema/executive-meetings.ts
index 9c71f2c9..5f309b1b 100644
--- a/lib/db/src/schema/executive-meetings.ts
+++ b/lib/db/src/schema/executive-meetings.ts
@@ -45,6 +45,15 @@ export const executiveMeetingsTable = pgTable(
     mergeStartColumn: varchar("merge_start_column", { length: 32 }),
     mergeEndColumn: varchar("merge_end_column", { length: 32 }),
     mergeText: text("merge_text"),
+    // Optional row-highlight colour for the daily schedule grid. NULL =
+    // "default" (no tint). Allowed non-null values come from the
+    // ROW_COLOR_OPTIONS palette in the frontend (red, amber, green,
+    // blue, violet, gray) and are validated app-side. Stored on the
+    // meeting row itself (not per-user) so the colour is shared across
+    // every viewer in real time, since it carries an editorial
+    // signal about the meeting (urgent / VIP / etc.) rather than a
+    // personal viewing preference.
+    rowColor: varchar("row_color", { length: 16 }),
     createdBy: integer("created_by").references(() => usersTable.id, {
       onDelete: "set null",
     }),