Color

#c53811

#c53811
hex#c53811
rgbrgb(197, 56, 17)
hslhsl(13, 84%, 42%)
oklchoklch(0.549 0.184 34.9)
Closest name: Bolognese (#bb4400)Relative luminance 0.1474

Colors that go with #c53811

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 #c53811

Tints & shades

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

Harmonies

Complementary

Open in tool →

#119ec5

#c51144 · #c59211

#11c538 · #3811c5

Split-complementary

Open in tool →

#11c592 · #1144c5

#44c511 · #119ec5 · #9211c5

Contrast

#c53811 as textRatioAAAA largeAAAFix
Aaon white
5.32:1passpassfail
  • AAA: use #a42f0e as the text (7.02:1)
Aaon black
3.95:1failpassfail
  • AA: use #d83d13 as the text (4.6:1)
  • AAA: use #ef704d as the text (7.09:1)
  • AA: or shift the background to #ededed (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #c53811 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#c53811 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #c53811
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 #c53811 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c53811-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