diff --git a/.changeset/cool-dingos-repair.md b/.changeset/cool-dingos-repair.md
new file mode 100644
index 0000000000..fe8377f5f1
--- /dev/null
+++ b/.changeset/cool-dingos-repair.md
@@ -0,0 +1,5 @@
+---
+'@backstage/theme': minor
+---
+
+Updates light theme's primary foreground and `running` status indicator colours to meet WCAG. Previously #2E77D0 changed to #1F5493.
diff --git a/packages/theme/src/themes.ts b/packages/theme/src/themes.ts
index eb2ef7ce41..23438a1c14 100644
--- a/packages/theme/src/themes.ts
+++ b/packages/theme/src/themes.ts
@@ -33,7 +33,7 @@ export const lightTheme = createTheme({
       ok: '#1DB954',
       warning: '#FF9800',
       error: '#E22134',
-      running: '#2E77D0',
+      running: '#1F5493',
       pending: '#FFED51',
       aborted: '#757575',
     },
@@ -48,7 +48,7 @@ export const lightTheme = createTheme({
       },
     },
     primary: {
-      main: '#2E77D0',
+      main: '#1F5493',
     },
     banner: {
       info: '#2E77D0',