Color

#a7111b

#a7111b
hex#a7111b
rgbrgb(167, 17, 27)
hslhsl(356, 82%, 36%)
oklchoklch(0.465 0.18 25.8)
Closest name: Blood Rush (#aa2222)Relative luminance 0.087

Colors that go with #a7111b

Royal Blue, Teal and Amber 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 →

#11a79d

#a71166 · #a75211

#1ba711 · #111ba7

Split-complementary

Open in tool →

#11a752 · #1166a7

#66a711 · #11a79d · #5211a7

Contrast

#a7111b as textRatioAAAA largeAAAFix
Aaon white
7.67:1passpasspassPasses AAA — no fix needed.
Aaon black
2.74:1failfailfail
  • AA: use #e81725 as the text (4.58:1)
  • AAA: use #f06a73 as the text (7.01:1)
  • AA: or shift the background to #c7c7c7 (4.54:1)
  • AAA: or shift the background to #f5f5f5 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a7111b as the background.

Brands using this color

Fonts for this mood

#a7111b reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a7111b
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 #a7111b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a7111b-c49e9c-62cb91-2d241f-f1e9ee?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