Color

#a71811

#a71811
hex#a71811
rgbrgb(167, 24, 17)
hslhsl(3, 82%, 36%)
oklchoklch(0.468 0.177 29.1)
Closest name: Blood Rush (#aa2222)Relative luminance 0.0891

Colors that go with #a71811

Royal Blue, Teal and Crimson 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 →

#11a0a7

#a71154 · #a76311

#11a718 · #1811a7

Split-complementary

Open in tool →

#11a763 · #1154a7

#54a711 · #11a0a7 · #6311a7

Contrast

#a71811 as textRatioAAAA largeAAAFix
Aaon white
7.55:1passpasspassPasses AAA — no fix needed.
Aaon black
2.78:1failfailfail
  • AA: use #e82117 as the text (4.66:1)
  • AAA: use #f06d66 as the text (7.08:1)
  • AA: or shift the background to #c9c9c9 (4.56:1)
  • AAA: or shift the background to #f7f7f7 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a71811 as the background.

Brands using this color

Fonts for this mood

#a71811 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a71811
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 #a71811 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a71811-c4a39c-62cb9d-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