Color

#a71b0c

#a71b0c
hex#a71b0c
rgbrgb(167, 27, 12)
hslhsl(6, 87%, 35%)
oklchoklch(0.469 0.176 30.4)
Closest name: Blood Rush (#aa2222)Relative luminance 0.0903

Colors that go with #a71b0c

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 →

#0c97a7

#a70c4a · #a7690c

#0ca71b · #1b0ca7

Split-complementary

Open in tool →

#0ca769 · #0c4aa7

#4aa70c · #0c97a7 · #690ca7

Contrast

#a71b0c as textRatioAAAA largeAAAFix
Aaon white
7.49:1passpasspassPasses AAA — no fix needed.
Aaon black
2.81:1failfailfail
  • AA: use #e52510 as the text (4.6:1)
  • AAA: use #f46c5d as the text (7.15:1)
  • AA: or shift the background to #c9c9c9 (4.52:1)
  • AAA: or shift the background to #fafafa (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a71b0c as the background.

Brands using this color

Fonts for this mood

#a71b0c reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a71b0c
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 #a71b0c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a71b0c-c4a59c-62cba3-2d271f-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