Color

#ca4521

#ca4521
hex#ca4521
rgbrgb(202, 69, 33)
hslhsl(13, 72%, 46%)
oklchoklch(0.573 0.175 35.5)
Closest name: Bolognese (#bb4400)Relative luminance 0.1692

Colors that go with #ca4521

Charcoal, Royal Blue and Sea Green 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.

Real palettes that use #ca4521

Tints & shades

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

Harmonies

Complementary

Open in tool →

#21a5ca

#ca2151 · #ca9a21

#21ca45 · #4521ca

Split-complementary

Open in tool →

#21ca9a · #2151ca

#51ca21 · #21a5ca · #9a21ca

Contrast

#ca4521 as textRatioAAAA largeAAAFix
Aaon white
4.79:1passpassfail
  • AAA: use #9e361a as the text (7.01:1)
Aaon black
4.38:1failpassfail
  • AA: use #ce4722 as the text (4.55:1)
  • AAA: use #e47758 as the text (7.08:1)
  • AA: or shift the background to #fafafa (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ca4521 as the background.

Brands using this color

Fonts for this mood

#ca4521 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ca4521
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 #ca4521 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ca4521-c4a99c-62cbaf-2d281f-f1e9eb?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