Improve styles (#4916)

Co-authored-by: Hailey <me@haileyok.com>

src/alf/themes.ts

@@ -186,19 +186,19 @@ export function createThemes({
     white: color.gray_0,
     black: color.trueBlack,
 
-    contrast_25: color.gray_1000,
-    contrast_50: color.gray_975,
-    contrast_100: color.gray_950,
-    contrast_200: color.gray_900,
-    contrast_300: color.gray_800,
-    contrast_400: color.gray_700,
-    contrast_500: color.gray_600,
-    contrast_600: color.gray_500,
-    contrast_700: color.gray_400,
-    contrast_800: color.gray_300,
-    contrast_900: color.gray_200,
-    contrast_950: color.gray_100,
-    contrast_975: color.gray_50,
+    contrast_25: color.gray_975,
+    contrast_50: color.gray_950,
+    contrast_100: color.gray_900,
+    contrast_200: color.gray_800,
+    contrast_300: color.gray_700,
+    contrast_400: color.gray_600,
+    contrast_500: color.gray_500,
+    contrast_600: color.gray_400,
+    contrast_700: color.gray_300,
+    contrast_800: color.gray_200,
+    contrast_900: color.gray_100,
+    contrast_950: color.gray_50,
+    contrast_975: color.gray_25,
 
     primary_25: color.primary_975,
     primary_50: color.primary_950,
@@ -400,7 +400,7 @@ export function createThemes({
         color: darkPalette.contrast_400,
       },
       text_contrast_medium: {
-        color: darkPalette.contrast_700,
+        color: darkPalette.contrast_600,
       },
       text_contrast_high: {
         color: darkPalette.contrast_900,