Color Design Toolkit - Picker / Palette / Contrast
Free color toolkit: image color picker, palette generator (complementary/analogous/triadic/tetradic), WCAG contrast check, gradient generator. Runs locally.
About 配色设计
Generate harmonious palettes, check contrast, pick colors from images, make gradients. This tool runs entirely in your browser locally — no file upload, your privacy is protected, and speed is unaffected by network.
FAQ
Will my files be uploaded?
No. All processing happens locally in your browser; files never leave your device.
Which formats / scenarios are supported?
color tools, color picker, palette generator, contrast checker, gradient generator, color swatch and more can be done on this page.
Do I need an internet connection?
After the page loads, conversion/computation runs locally and works offline (except features relying on external fonts/libraries).