Color

#de1231

#de1231
hex#de1231
rgbrgb(222, 18, 49)
hslhsl(351, 85%, 47%)
oklchoklch(0.573 0.225 23)
Closest name: crimson (#dc143c)Relative luminance 0.1618

Colors that go with #de1231

Charcoal, Royal Blue and Steel Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#12debf

#de1296 · #de5912

#31de12 · #1231de

Split-complementary

Open in tool →

#12de59 · #1296de

#96de12 · #12debf · #5912de

Contrast

#de1231 as textRatioAAAA largeAAAFix
Aaon white
4.96:1passpassfail
  • AAA: use #af0e26 as the text (7.21:1)
Aaon black
4.24:1failpassfail
  • AA: use #e71333 as the text (4.54:1)
  • AAA: use #f3687d as the text (7.09:1)
  • AA: or shift the background to #f5f5f5 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #de1231 as the background.

Brands using this color

Fonts for this mood

#de1231 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #de1231
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #de1231 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/de1231-c49c9e-62cb89-2d231f-f1e9ee?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md