diff --git a/.changeset/sweet-jeans-pretend.md b/.changeset/sweet-jeans-pretend.md
new file mode 100644
index 000000000..1d189081a
--- /dev/null
+++ b/.changeset/sweet-jeans-pretend.md
@@ -0,0 +1,5 @@
+---
+"@primer/primitives": patch
+---
+
+Add `borderColor-translucent`
diff --git a/.playwright/snapshots/storybook.test.ts-snapshots/storybook-all-color-swatches-dark-borderColor-translucent-linux.png b/.playwright/snapshots/storybook.test.ts-snapshots/storybook-all-color-swatches-dark-borderColor-translucent-linux.png
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index 000000000..83e8753ad
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diff --git a/.playwright/snapshots/storybook.test.ts-snapshots/storybook-all-color-swatches-dark-colorblind-borderColor-translucent-linux.png b/.playwright/snapshots/storybook.test.ts-snapshots/storybook-all-color-swatches-dark-colorblind-borderColor-translucent-linux.png
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diff --git a/.playwright/snapshots/storybook.test.ts-snapshots/storybook-all-color-swatches-dark-high-contrast-borderColor-translucent-linux.png b/.playwright/snapshots/storybook.test.ts-snapshots/storybook-all-color-swatches-dark-high-contrast-borderColor-translucent-linux.png
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index 000000000..359a66ce1
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diff --git a/.playwright/snapshots/storybook.test.ts-snapshots/storybook-all-color-swatches-dark-tritanopia-borderColor-translucent-linux.png b/.playwright/snapshots/storybook.test.ts-snapshots/storybook-all-color-swatches-dark-tritanopia-borderColor-translucent-linux.png
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index 000000000..83e8753ad
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diff --git a/.playwright/snapshots/storybook.test.ts-snapshots/storybook-all-color-swatches-light-borderColor-translucent-linux.png b/.playwright/snapshots/storybook.test.ts-snapshots/storybook-all-color-swatches-light-borderColor-translucent-linux.png
new file mode 100644
index 000000000..c48a33895
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diff --git a/.playwright/snapshots/storybook.test.ts-snapshots/storybook-all-color-swatches-light-colorblind-borderColor-translucent-linux.png b/.playwright/snapshots/storybook.test.ts-snapshots/storybook-all-color-swatches-light-colorblind-borderColor-translucent-linux.png
new file mode 100644
index 000000000..c48a33895
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diff --git a/.playwright/snapshots/storybook.test.ts-snapshots/storybook-all-color-swatches-light-high-contrast-borderColor-translucent-linux.png b/.playwright/snapshots/storybook.test.ts-snapshots/storybook-all-color-swatches-light-high-contrast-borderColor-translucent-linux.png
new file mode 100644
index 000000000..6ff6db5b1
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diff --git a/.playwright/snapshots/storybook.test.ts-snapshots/storybook-all-color-swatches-light-tritanopia-borderColor-translucent-linux.png b/.playwright/snapshots/storybook.test.ts-snapshots/storybook-all-color-swatches-light-tritanopia-borderColor-translucent-linux.png
new file mode 100644
index 000000000..c48a33895
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diff --git a/blob-report/report.zip b/blob-report/report.zip
index b801449eb..fd5f9b288 100644
Binary files a/blob-report/report.zip and b/blob-report/report.zip differ
diff --git a/docs/storybook/stories/Color/Functional/Border.stories.tsx b/docs/storybook/stories/Color/Functional/Border.stories.tsx
index 124864375..b30da5085 100644
--- a/docs/storybook/stories/Color/Functional/Border.stories.tsx
+++ b/docs/storybook/stories/Color/Functional/Border.stories.tsx
@@ -15,6 +15,7 @@ const borderColors = [
   'borderColor-emphasis',
   'borderColor-disabled',
   'borderColor-transparent',
+  'borderColor-translucent',
 ]
 
 export const Border = () => {
diff --git a/src/tokens/functional/color/dark/overrides/dark.high-contrast.json5 b/src/tokens/functional/color/dark/overrides/dark.high-contrast.json5
index 25b1bfd2e..bc3014ddb 100644
--- a/src/tokens/functional/color/dark/overrides/dark.high-contrast.json5
+++ b/src/tokens/functional/color/dark/overrides/dark.high-contrast.json5
@@ -42,6 +42,11 @@
       $type: 'color',
       alpha: 1,
     },
+    translucent: {
+      $value: '{base.color.neutral.5}',
+      $type: 'color',
+      alpha: 1,
+    },
     neutral: {
       muted: {
         $value: '{base.color.neutral.4}',
diff --git a/src/tokens/functional/color/dark/patterns-dark.json5 b/src/tokens/functional/color/dark/patterns-dark.json5
index 779ed42ac..9fdaefca4 100644
--- a/src/tokens/functional/color/dark/patterns-dark.json5
+++ b/src/tokens/functional/color/dark/patterns-dark.json5
@@ -14,7 +14,7 @@
       alpha: 0.1,
     },
     borderColor: {
-      $value: '{base.color.white}',
+      $value: '{borderColor.translucent}',
       $type: 'color',
       $extensions: {
         'org.primer.figma': {
@@ -24,7 +24,6 @@
           scopes: ['borderColor'],
         },
       },
-      alpha: 0.15,
     },
   },
   avatarStack: {
diff --git a/src/tokens/functional/color/dark/primitives-dark.json5 b/src/tokens/functional/color/dark/primitives-dark.json5
index 1a5946b89..edb490b19 100644
--- a/src/tokens/functional/color/dark/primitives-dark.json5
+++ b/src/tokens/functional/color/dark/primitives-dark.json5
@@ -846,6 +846,19 @@
         },
       },
     },
+    translucent: {
+      $value: '{base.color.white}',
+      $type: 'color',
+      $extensions: {
+        'org.primer.figma': {
+          collection: 'mode',
+          mode: 'dark',
+          group: 'component (internal)',
+          scopes: ['borderColor'],
+        },
+      },
+      alpha: 0.15,
+    },
     neutral: {
       muted: {
         $value: '{base.color.neutral.4}',
diff --git a/src/tokens/functional/color/light/overrides/light.high-contrast.json5 b/src/tokens/functional/color/light/overrides/light.high-contrast.json5
index f3f944a23..532d2e310 100644
--- a/src/tokens/functional/color/light/overrides/light.high-contrast.json5
+++ b/src/tokens/functional/color/light/overrides/light.high-contrast.json5
@@ -71,6 +71,11 @@
       $type: 'color',
       alpha: 1,
     },
+    translucent: {
+      $value: '{base.color.neutral.8}',
+      $type: 'color',
+      alpha: 1,
+    },
     neutral: {
       muted: {
         $value: '{base.color.neutral.4}',
diff --git a/src/tokens/functional/color/light/patterns-light.json5 b/src/tokens/functional/color/light/patterns-light.json5
index d48f47e19..019ef27b5 100644
--- a/src/tokens/functional/color/light/patterns-light.json5
+++ b/src/tokens/functional/color/light/patterns-light.json5
@@ -13,7 +13,7 @@
       },
     },
     borderColor: {
-      $value: '{base.color.black}',
+      $value: '{borderColor.translucent}',
       $type: 'color',
       $extensions: {
         'org.primer.figma': {
@@ -23,7 +23,6 @@
           scopes: ['borderColor'],
         },
       },
-      alpha: 0.15,
     },
   },
   avatarStack: {
diff --git a/src/tokens/functional/color/light/primitives-light.json5 b/src/tokens/functional/color/light/primitives-light.json5
index 332384e32..20b6c2b98 100644
--- a/src/tokens/functional/color/light/primitives-light.json5
+++ b/src/tokens/functional/color/light/primitives-light.json5
@@ -836,6 +836,19 @@
         },
       },
     },
+    translucent: {
+      $value: '{base.color.black}',
+      $type: 'color',
+      $extensions: {
+        'org.primer.figma': {
+          collection: 'mode',
+          mode: 'light',
+          group: 'semantic',
+          scopes: ['borderColor'],
+        },
+      },
+      alpha: 0.15,
+    },
     neutral: {
       muted: {
         $value: '{base.color.neutral.3}',