Color

#a70109

#a70109
hex#a70109
rgbrgb(167, 1, 9)
hslhsl(357, 99%, 33%)
oklchoklch(0.458 0.187 28)
Closest name: Bleeding Crimson (#9b1414)Relative luminance 0.0826

Colors that go with #a70109

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 →

#01a79f

#a7015c · #a74c01

#09a701 · #0109a7

Split-complementary

Open in tool →

#01a74c · #015ca7

#5ca701 · #01a79f · #4c01a7

Contrast

#a70109 as textRatioAAAA largeAAAFix
Aaon white
7.92:1passpasspassPasses AAA — no fix needed.
Aaon black
2.65:1failfailfail
  • AA: use #ef010d as the text (4.68:1)
  • AAA: use #fe626a as the text (7.17:1)
  • AA: or shift the background to #c4c4c4 (4.54:1)
  • AAA: or shift the background to #f2f2f2 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a70109 as the background.

Brands using this color

Fonts for this mood

#a70109 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a70109
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 #a70109 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a70109-c49f9c-62cb93-2d251f-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