diff --git a/.github/workflows/auto-response.yml b/.github/workflows/auto-response.yml
index 0507bd3..0fec125 100644
--- a/.github/workflows/auto-response.yml
+++ b/.github/workflows/auto-response.yml
@@ -35,7 +35,7 @@ jobs:
               { label: "experienced contributor", minMergedPRs: 10 },
             ];
             const contributorTierLabels = contributorTierRules.map((rule) => rule.label);
-            const contributorTierColor = "39FF14";
+            const contributorTierColor = "2ED9FF"; // Keep in sync with .github/workflows/labeler.yml
             const managedContributorLabels = new Set([
               legacyTrustedContributorLabel,
               ...contributorTierLabels,
diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
index 8973c94..b0cd7e2 100644
--- a/.github/workflows/labeler.yml
+++ b/.github/workflows/labeler.yml
@@ -57,7 +57,7 @@ jobs:
                         { label: "experienced contributor", minMergedPRs: 10 },
                       ];
                       const contributorTierLabels = contributorTierRules.map((rule) => rule.label);
-                      const contributorTierColor = "2ED9FF";
+                      const contributorTierColor = "2ED9FF"; // Keep in sync with .github/workflows/auto-response.yml
 
                       const managedPathLabels = [
                         "docs",