Usage Guide
The color toolbox converts between HEX, RGB, HSL, and related formats, and checks contrast between foreground and background colors. Enter or pick a color to copy values for CSS, design files, and component themes. Contrast checks follow WCAG-style thresholds and help you judge whether body text, large text, and important buttons are readable enough. Do not rely only on visual instinct: light text on bright backgrounds, muted text on dark cards, and brand-color buttons with white labels can all become difficult to read on real devices.