diff --git a/themes/theme-b2b/src/tokens.ts b/themes/theme-b2b/src/tokens.ts
index 09a2200050..896a8bd246 100644
--- a/themes/theme-b2b/src/tokens.ts
+++ b/themes/theme-b2b/src/tokens.ts
@@ -209,8 +209,8 @@ export const colors = {
     surface: {
       DEFAULT: white,
       raised: white, // used e.g. card
-      overlay: white, // used e.g. calendar
-      sunken: gray[600],
+      overlay: white, // used e.g. popover
+      sunken: gray[100],
     },
   },
 
diff --git a/themes/theme-core/src/tokens.ts b/themes/theme-core/src/tokens.ts
index 9f58e17ec8..a6f6247040 100644
--- a/themes/theme-core/src/tokens.ts
+++ b/themes/theme-core/src/tokens.ts
@@ -207,7 +207,7 @@ export const colors = {
       DEFAULT: gray[100],
       raised: gray[50],
       overlay: gray[50],
-      sunken: gray[900],
+      sunken: gray[200],
     },
   },