Slop Colors · Beta
Colour picker, palette generator and contrast checker
Pick colours from pictures, make palettes and check contrast. Nothing uploaded.
Nothing to install: just open it in the browser on your phone, tablet or computer. It keeps working without internet after your first visit. Want an icon on your home screen? On iPhone or iPad, tap Share, then Add to Home Screen. On Android, open the browser menu and tap Add to Home screen. On a computer, click the install icon in the address bar.
Slop Colors has these main features: Eyedropper with a magnifier, and the main colours of a picture; Harmonies, tints, shades and a 50 to 950 ramp. It opens Any image.
Beta: still being tested, so some parts may change.
What you can do with Slop Colors
- Check colour contrast against WCAG
- Pick colours from a picture
- Generate a colour palette from one colour
- Convert HEX to RGB, HSL, OKLCH or CMYK
How Slop Colors compares
Slop Colors next to Coolors, Adobe Color, WebAIM Contrast Checker: facts from each tool's own pages, checked 2026-10-25. We make Slop Colors.
| Tool | Price | Runs on | Colours from a picture | Contrast check |
|---|---|---|---|---|
| Slop Colors ours | Free, no account | Any modern browser | Eyedropper and main colours (k-means) | Ratio, AA and AAA, with a fix |
| Coolors | Free plan; Pro plan | Web, iOS app, Figma plugin, Chrome extension | Image Picker | Contrast Checker |
| Adobe Color | Free | Web | Extract from an image | Contrast ratios with WCAG guidance |
| WebAIM Contrast Checker | Free | Web | No (an eyedropper picks from the screen) | AA and AAA, normal and large text, UI |
| Feature | Slop Colors ours | Coolors | Adobe Color | WebAIM Contrast Checker |
|---|---|---|---|---|
| Colours from a picture | Yes | Yes | Yes | No |
| Harmonies from one colour | Yes | Not stated | Yes | No |
| WCAG contrast check | Yes | Yes | Yes | Yes |
| Large text and UI levels | Yes | Not stated | Not stated | Yes |
| Colour blindness preview | No | Not stated | Yes | No |
| CSS export | Yes | Yes | Not stated | No |
| Tailwind export | Yes | Yes | Not stated | No |
| Adobe .ase export | Yes | Yes | Not stated | No |
| GIMP .gpl export | Yes | Not stated | Not stated | No |
| OKLCH values | Yes | Not stated | Not stated | No |
| No account needed | Yes | Partly | Partly | Yes |
| Pictures stay on your device | Yes | Not stated | Not stated | Yes |
The full comparison, with sources: The best free colour palette and contrast tools
Feature matrix
| Feature | Status | File types |
|---|---|---|
| Eyedropper with a magnifier, and the main colours of a picture | Beta | Any image |
| Harmonies, tints, shades and a 50 to 950 ramp | Beta | Any image |
| WCAG contrast check with a fix for failing text | Beta | Any image |
| HEX, RGB, HSL, OKLCH and CMYK | Beta | Any image |
| Export CSS, Tailwind, JSON, ASE and GPL; save to Slop Drive | Beta | Any image |
File types
Slop Colors opens Any image.
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