How to Use the Brand Color Accessibility Contrast Matrix
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1
Enter up to 6 brand colors.
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2
View the auto-generated pairwise contrast matrix table.
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3
Click any pair to view large/small text compliance details.
Practical Example & Use Case
Common Real-World Scenario
Testing primary navy, coral accent, slate gray, and white to see which combinations meet 4.5:1 WCAG AA.
Technical Notes & Limitations
Browser Engine Architecture
Calculates contrast according to WCAG 2.1 relative luminance algorithm.
Frequently Asked Questions
What is the WCAG AA contrast threshold?
Normal text requires at least 4.5:1 ratio. Large text (18pt+ or 14pt bold) requires at least 3.0:1.
How does the matrix help design systems?
It gives designers an instant reference chart of safe text-on-background combinations to avoid accessibility violations.