Color

#c9451d

#c9451d
hex#c9451d
rgbrgb(201, 69, 29)
hslhsl(14, 75%, 45%)
oklchoklch(0.571 0.175 36.4)
Closest name: Bolognese (#bb4400)Relative luminance 0.1676

Colors that go with #c9451d

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 #c9451d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1da1c9

#c91d4b · #c99b1d

#1dc945 · #451dc9

Split-complementary

Open in tool →

#1dc99b · #1d4bc9

#4bc91d · #1da1c9 · #9b1dc9

Contrast

#c9451d as textRatioAAAA largeAAAFix
Aaon white
4.82:1passpassfail
  • AAA: use #9c3616 as the text (7.11:1)
Aaon black
4.35:1failpassfail
  • AA: use #d2481e as the text (4.69:1)
  • AAA: use #e77755 as the text (7.17:1)
  • AA: or shift the background to #f7f7f7 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #c9451d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#c9451d reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #c9451d
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 #c9451d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c9451d-c4aa9c-62cbb1-2d291f-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