diff --git a/.changeset/long-moose-kiss.md b/.changeset/long-moose-kiss.md
new file mode 100644
index 000000000..10698fd1d
--- /dev/null
+++ b/.changeset/long-moose-kiss.md
@@ -0,0 +1,5 @@
+---
+"@primer/primitives": minor
+---
+
+Add Tritanopia theme
diff --git a/data/colors/index.ts b/data/colors/index.ts
index ecbb28c12..4ea90d6a2 100644
--- a/data/colors/index.ts
+++ b/data/colors/index.ts
@@ -1,17 +1,21 @@
 import light from './themes/light'
 import light_high_contrast from './themes/light_high_contrast'
 import light_colorblind from './themes/light_colorblind'
+import light_tritanopia from './themes/light_tritanopia'
 import dark from './themes/dark'
 import dark_dimmed from './themes/dark_dimmed'
 import dark_high_contrast from './themes/dark_high_contrast'
 import dark_colorblind from './themes/dark_colorblind'
+import dark_tritanopia from './themes/dark_tritanopia'
 
 export default {
   light,
   light_high_contrast,
   light_colorblind,
+  light_tritanopia,
   dark,
   dark_dimmed,
   dark_high_contrast,
-  dark_colorblind
+  dark_colorblind,
+  dark_tritanopia
 }
diff --git a/data/colors/themes/dark_tritanopia.ts b/data/colors/themes/dark_tritanopia.ts
new file mode 100644
index 000000000..d4d5f1453
--- /dev/null
+++ b/data/colors/themes/dark_tritanopia.ts
@@ -0,0 +1,62 @@
+import {merge} from '../../../src/utils'
+import dark_colorblind from './dark_colorblind'
+
+const scale = {
+  black: '#010409',
+  white: '#ffffff',
+  gray: ['#f0f6fc', '#c9d1d9', '#b1bac4', '#8b949e', '#6e7681', '#484f58', '#30363d', '#21262d', '#161b22', '#0d1117'],
+  blue: ['#cae8ff', '#a5d6ff', '#79c0ff', '#58a6ff', '#388bfd', '#1f6feb', '#1158c7', '#0d419d', '#0c2d6b', '#051d4d'],
+  green: ['#cae8ff', '#a5d6ff', '#79c0ff', '#58a6ff', '#388bfd', '#1f6feb', '#1158c7', '#0d419d', '#0c2d6b', '#051d4d'],
+  yellow: [
+    '#f8e3a1',
+    '#f2cc60',
+    '#e3b341',
+    '#d29922',
+    '#bb8009',
+    '#9e6a03',
+    '#845306',
+    '#693e00',
+    '#4b2900',
+    '#341a00'
+  ],
+  orange: [
+    '#ffdcd7',
+    '#ffc1ba',
+    '#ffa198',
+    '#ff7b72',
+    '#f85149',
+    '#da3633',
+    '#b62324',
+    '#8e1519',
+    '#67060c',
+    '#490202'
+  ],
+  red: [
+    '#ffdcd7',
+    '#ffc1ba',
+    '#ffa198',
+    '#ff7b72',
+    '#f85149',
+    '#da3633',
+    '#b62324',
+    '#8e1519',
+    '#67060c',
+    '#490202'
+  ],
+  purple: [
+    '#eddeff',
+    '#e2c5ff',
+    '#d2a8ff',
+    '#bc8cff',
+    '#a371f7',
+    '#8957e5',
+    '#6e40c9',
+    '#553098',
+    '#3c1e70',
+    '#271052'
+  ],
+  pink: ['#ffdaec', '#ffbedd', '#ff9bce', '#f778ba', '#db61a2', '#bf4b8a', '#9e3670', '#7d2457', '#5e103e', '#42062a'],
+  coral: ['#FFDDD2', '#FFC2B2', '#FFA28B', '#F78166', '#EA6045', '#CF462D', '#AC3220', '#872012', '#640D04', '#460701']
+}
+
+export default merge(dark_colorblind, {scale})
diff --git a/data/colors/themes/light_tritanopia.ts b/data/colors/themes/light_tritanopia.ts
new file mode 100644
index 000000000..d1e97ca39
--- /dev/null
+++ b/data/colors/themes/light_tritanopia.ts
@@ -0,0 +1,62 @@
+import {merge} from '../../../src/utils'
+import light_colorblind from './light_colorblind'
+
+const scale = {
+  black: '#1b1f24',
+  white: '#ffffff',
+  gray: ['#f6f8fa', '#eaeef2', '#d0d7de', '#afb8c1', '#8c959f', '#6e7781', '#57606a', '#424a53', '#32383f', '#24292f'],
+  blue: ['#ddf4ff', '#b6e3ff', '#80ccff', '#54aeff', '#218bff', '#0969da', '#0550ae', '#033d8b', '#0a3069', '#002155'],
+  green: ['#ddf4ff', '#b6e3ff', '#80ccff', '#54aeff', '#218bff', '#0969da', '#0550ae', '#033d8b', '#0a3069', '#002155'],
+  yellow: [
+    '#fff8c5',
+    '#fae17d',
+    '#eac54f',
+    '#d4a72c',
+    '#bf8700',
+    '#9a6700',
+    '#7d4e00',
+    '#633c01',
+    '#4d2d00',
+    '#3b2300'
+  ],
+  orange: [
+    '#FFEBE9',
+    '#ffcecb',
+    '#ffaba8',
+    '#ff8182',
+    '#fa4549',
+    '#cf222e',
+    '#a40e26',
+    '#82071e',
+    '#660018',
+    '#4c0014'
+  ],
+  red: [
+    '#FFEBE9',
+    '#ffcecb',
+    '#ffaba8',
+    '#ff8182',
+    '#fa4549',
+    '#cf222e',
+    '#a40e26',
+    '#82071e',
+    '#660018',
+    '#4c0014'
+  ],
+  purple: [
+    '#fbefff',
+    '#ecd8ff',
+    '#d8b9ff',
+    '#c297ff',
+    '#a475f9',
+    '#8250df',
+    '#6639ba',
+    '#512a97',
+    '#3e1f79',
+    '#2e1461'
+  ],
+  pink: ['#ffeff7', '#ffd3eb', '#ffadda', '#ff80c8', '#e85aad', '#bf3989', '#99286e', '#772057', '#611347', '#4d0336'],
+  coral: ['#FFF0EB', '#FFD6CC', '#FFB4A1', '#FD8C73', '#EC6547', '#C4432B', '#9E2F1C', '#801F0F', '#691105', '#510901']
+}
+
+export default merge(light_colorblind, {scale})