diff --git a/.changeset/red-lions-help.md b/.changeset/red-lions-help.md
new file mode 100644
index 0000000000..eec479de63
--- /dev/null
+++ b/.changeset/red-lions-help.md
@@ -0,0 +1,5 @@
+---
+"@primer/css": patch
+---
+
+Rename protanopia themes to colorblind.
diff --git a/src/color-modes/index.scss b/src/color-modes/index.scss
index 31605602c9..fe4c9d52d3 100644
--- a/src/color-modes/index.scss
+++ b/src/color-modes/index.scss
@@ -1,9 +1,9 @@
 // All themes
 
 @import "./themes/light.scss";
-@import "./themes/light_protanopia.scss";
+@import "./themes/light_colorblind.scss";
 @import "./themes/dark.scss";
 @import "./themes/dark_dimmed.scss";
 @import "./themes/dark_high_contrast.scss";
-@import "./themes/dark_protanopia.scss";
+@import "./themes/dark_colorblind.scss";
 @import "./native.scss";
diff --git a/src/color-modes/themes/dark_protanopia.scss b/src/color-modes/themes/dark_colorblind.scss
similarity index 77%
rename from src/color-modes/themes/dark_protanopia.scss
rename to src/color-modes/themes/dark_colorblind.scss
index 41d722ba48..5aecc4b8b0 100644
--- a/src/color-modes/themes/dark_protanopia.scss
+++ b/src/color-modes/themes/dark_colorblind.scss
@@ -2,6 +2,6 @@
 
 @import "@primer/primitives/dist/scss/colors/_dark_protanopia.scss";
 
-@include color-mode-theme(dark_protanopia) {
+@include color-mode-theme(dark_colorblind) {
   @include primer-colors-dark_protanopia;
 }
diff --git a/src/color-modes/themes/light_protanopia.scss b/src/color-modes/themes/light_colorblind.scss
similarity index 76%
rename from src/color-modes/themes/light_protanopia.scss
rename to src/color-modes/themes/light_colorblind.scss
index 0e827b96a7..608813ddae 100644
--- a/src/color-modes/themes/light_protanopia.scss
+++ b/src/color-modes/themes/light_colorblind.scss
@@ -2,6 +2,6 @@
 
 @import "@primer/primitives/dist/scss/colors/_light_protanopia.scss";
 
-@include color-mode-theme(light_protanopia) {
+@include color-mode-theme(light_colorblind) {
   @include primer-colors-light_protanopia;
 }