All 141 tools / Print and prepress
Approximate an sRGB colour as CMYK, or the reverse, with total ink and a gamut caution
Screen and print colour approximationFreeFor designers
25/day
free runs a day, no sign-in.
Before: what you give it
The example input, as typed in. You paste text, CSS, markup or notes.
#e4002b
After: what comes back
The first lines of a real run on that input. Nothing here is edited by hand.
sRGB to CMYK: #e4002b = rgb(228, 0, 43) = cmyk(0, 100, 81, 11) (total ink 192%) - This is a vivid, near-pure screen colour. CMYK cannot reach it; expect a duller print (RGB's gamut is wider, per the library's 365 Graphic Design Sins). APPROXIMATION, PROOF IT: naive maths with no colour management. A real press, ink set and paper will differ, often visibly for vivid colours. Limits: no ICC profile, paper, dot gain or ink set is modelled. Rounded to whole numbers.
What you get
The converted value, total ink percentage, and a warning when the colour is outside CMYK reach
What it cannot do
Plain formula, no ICC profile or paper; it holds no Pantone data, so spot names are sent to your licensed swatch book.
Who it is for
- Designers
Free and Pro
| Free | 25 runs a day per IP address, up to 100,000 characters a run. |
|---|---|
| Pro | No daily limit, 300 requests a minute, up to 200,000 characters a run. |
Use it from your assistant
The tool is called approx_print_colour. Connect the server once, then ask for it by name or just describe the job. Install steps for each app.
claude mcp add --transport http designers https://designers.allthepossibles.com/mcpcurl -X POST https://designers.allthepossibles.com/api/pantone-to-approx -H 'content-type: application/json' -d '{"value":"#e4002b"}'Try it here
The form starts with the same example input, so you can run it first and then swap in your own.
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