Color

#cd3a37

#cd3a37
hex#cd3a37
rgbrgb(205, 58, 55)
hslhsl(1, 60%, 51%)
oklchoklch(0.568 0.185 26.2)
Closest name: Bento Box (#cc363c)Relative luminance 0.1628

Colors that go with #cd3a37

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#37cbcd

#cd3780 · #cd8537

#37cd3a · #3a37cd

Split-complementary

Open in tool →

#37cd85 · #3780cd

#80cd37 · #37cbcd · #8537cd

Contrast

#cd3a37 as textRatioAAAA largeAAAFix
Aaon white
4.93:1passpassfail
  • AAA: use #a32b29 as the text (7.16:1)
Aaon black
4.26:1failpassfail
  • AA: use #cf423f as the text (4.5:1)
  • AAA: use #dd7a78 as the text (7.13:1)
  • AA: or shift the background to #f5f5f5 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #cd3a37 as the background.

Brands using this color

Fonts for this mood

#cd3a37 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #cd3a37
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 #cd3a37 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cd3a37-c4a19c-62cb9a-2d261f-f1e9ed?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