Unify brand palette across site emails previews and sign defaults

packages/contracts/src/brand.ts

@@ -0,0 +1,14 @@
+/** Shared brand colors for web, transactional mail, social previews and signs. */
+export const brandPalette = {
+  background: "#f4f1ea",
+  surface: "#fffefa",
+  ink: "#171716",
+  muted: "#5e5a52",
+  border: "#d8d2c7",
+  primary: "#3156c8",
+  onPrimary: "#ffffff",
+  accent: "#e4e9f8",
+  darkBackground: "#0d1018",
+  darkSurface: "#171b26",
+  darkPrimary: "#7f9cff",
+} as const;

packages/contracts/src/index.ts

@@ -1,4 +1,5 @@
 import { z } from "zod";
+export { brandPalette } from "./brand";
 export { SIGN_PAPERS, savedSignSchema, type SavedSign } from "./sign";
 
 export const eventStatusSchema = z.enum(["draft", "published", "closed"]);