diff --git a/lib/panel.css.ts b/lib/panel.css.ts
index 0a6fd18..8f4ec6f 100644
--- a/lib/panel.css.ts
+++ b/lib/panel.css.ts
@@ -26,7 +26,7 @@ const variantRules: Record<
   }
 > = {
   standard: {
-    backgroundColor: hsl(0, 0, contrastSchemeVars.level0.l),
+    backgroundColor: hsl(0, 0, contrastSchemeVars.level0point5.l),
   },
   neutral: {
     backgroundColor: hsl(0, 0, contrastSchemeVars.level1.l),
diff --git a/lib/schemes/color.css.ts b/lib/schemes/color.css.ts
index 4a170fa..7f43980 100644
--- a/lib/schemes/color.css.ts
+++ b/lib/schemes/color.css.ts
@@ -102,7 +102,7 @@ const darkStyleRule: ComplexStyleRule = {
       l: '10%',
     },
     level0point5: {
-      l: '10%',
+      l: '12%',
     },
     level1: {
       l: '20%',
@@ -233,7 +233,7 @@ const lightStyleRule: ComplexStyleRule = {
       l: '100%',
     },
     level0point5: {
-      l: '95%',
+      l: '98%',
     },
     level1: {
       l: '90%',
@@ -277,7 +277,7 @@ export const defaultBgFgClass = style({
   backgroundColor: hsl(
     colorThemeVars.tones.accent.h,
     0,
-    contrastSchemeVars.level0.l,
+    contrastSchemeVars.level0point5.l,
   ),
   color: hsl(colorThemeVars.tones.accent.h, 0, contrastSchemeVars.level5.l),
 });