Create contrast-check.yml

.github/workflows/contrast-check.yml

@@ -0,0 +1,32 @@
+name: "Contrast Check"
+on:
+  pull_request:
+    paths:
+      - 'css/brands.css'
+  push:
+    paths:
+      - 'css/brands.css'
+  workflow_dispatch:
+
+jobs:
+  contrast-check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      
+      - name: Fetch main branch
+        run: git fetch origin main:main
+      
+      - name: Debug information
+        run: |
+          echo "Current branch: $(git branch --show-current)"
+          echo "Modified files in PR:"
+          git diff --name-only origin/main
+
+      - name: Run Contrast Check
+        run: |
+          chmod +x ./scripts/audit-contrast.sh
+          ./scripts/audit-contrast.sh