Color High Contrast Theme Builder
Create high-contrast text, surface, accent, and focus colors for accessible themes.
What the Color High Contrast Theme does
Create high-contrast text, surface, accent, and focus colors for accessible themes. A docs site can test black text, white surface, bright focus ring, and strong link blue together Adjust the controls and the preview updates immediately, so you can dial in exactly what you want and copy the result straight into your project — no build step and no account.
One thing to keep in mind: High contrast themes should still respect user-selected system contrast modes.
Private and in your browser
Everything runs locally in your browser. Your input is never uploaded, so the tool stays fast and works offline, and the copy and download buttons always use the current result shown in the output panel.
Frequently Asked Questions
What does the Color High Contrast Theme do?
Create high-contrast text, surface, accent, and focus colors for accessible themes. A docs site can test black text, white surface, bright focus ring, and strong link blue together.
What should I keep in mind?
High contrast themes should still respect user-selected system contrast modes
Does it upload my input?
No. The Color High Contrast Theme runs entirely in your browser — your input is never uploaded, and it keeps working offline once the page has loaded.
Practical utilities for front-end design and implementation work.