Color

#57180a

#57180a
hex#57180a
rgbrgb(87, 24, 10)
hslhsl(11, 79%, 19%)
oklchoklch(0.311 0.096 34)
Closest name: Chocolate Rush (#4e1b0b)Relative luminance 0.027

Colors that go with #57180a

Charcoal, Royal Blue and Sienna 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 →

#0a4957

#570a22 · #573e0a

#0a5718 · #180a57

Split-complementary

Open in tool →

#0a573e · #0a2257

#22570a · #0a4957 · #3e0a57

Contrast

#57180a as textRatioAAAA largeAAAFix
Aaon white
13.63:1passpasspassPasses AAA — no fix needed.
Aaon black
1.54:1failfailfail
  • AA: use #d73c19 as the text (4.55:1)
  • AAA: use #eb7156 as the text (7.03:1)
  • AA: or shift the background to #969696 (4.61:1)
  • AAA: or shift the background to #bababa (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #57180a as the background.

Brands using this color

Fonts for this mood

#57180a reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #57180a
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 #57180a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/57180a-c4a89c-62cbab-2d281f-f1e9ec?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