Check foreground/background color contrast against WCAG AA and AAA accessibility standards. Everything runs locally in your browser — nothing is uploaded.
Generate harmonious color palettes from a base color. Includes complementary, analogous, and triadic color schemes for designers. Everything runs locally in your browser — nothing is uploaded.
Generate color shades and tints from a base color by varying lightness in HSL space.
Generate avatar initials SVG from any name with customizable background color, text color, and size. Perfect for profile placeholders. Everything runs locally in your browser — nothing is uploaded.
Check the contrast ratio between two colors against WCAG AA and AAA standards. Essential for accessible web design. Everything runs locally in your browser — nothing is uploaded.
Add a subtle color tint to all pages in a PDF document. Upload your PDF and pick a background color.
Contrast Ratio Checker lets you check foreground/background color contrast against WCAG AA and AAA accessibility standards. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Check foreground/background color contrast against WCAG AA and AAA accessibility standards. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Enter one or more URLs to analyze.
Yes. After the initial page load, Contrast Ratio Checker runs entirely on your device with no internet connection needed. All processing is done locally.
Check foreground/background color contrast against WCAG AA and AAA accessibility standards. All processing runs locally in your browser.
Most design tools support PNG, JPG, SVG, WebP, and CSS output.
SVG and lossless PNG preserve full quality. JPG/WebP offer compression at adjustable quality levels.
No. All design processing runs in your browser. Download before leaving the page.
No. The tools are designed to be intuitive. Adjust controls and see changes in real time.
Color Blindness Simulator
Simulate how your designs and images appear to users with protanopia, deuteranopia, tritanopia, and achromatopsia color vision deficiencies.
Color Converter
Convert colors between Hex, RGB, HSL, HSV, and CMYK formats. Real-time preview, color picker, and copy-to-clipboard.
Color Picker
Pick colors from a visual spectrum or enter hex values. Copy to clipboard — perfect for design palettes, CSS variables, and UI mockups. Everything runs locally in your browser — nothing is uploaded.