Color

#ab121a

#ab121a
hex#ab121a
rgbrgb(171, 18, 26)
hslhsl(357, 81%, 37%)
oklchoklch(0.473 0.183 26.4)
Closest name: Blood Rush (#aa2222)Relative luminance 0.0917

Colors that go with #ab121a

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 →

#12aba3

#ab1266 · #ab5712

#1aab12 · #121aab

Split-complementary

Open in tool →

#12ab57 · #1266ab

#66ab12 · #12aba3 · #5712ab

Contrast

#ab121a as textRatioAAAA largeAAAFix
Aaon white
7.41:1passpasspassPasses AAA — no fix needed.
Aaon black
2.83:1failfailfail
  • AA: use #e71823 as the text (4.55:1)
  • AAA: use #ef6b72 as the text (7.02:1)
  • AA: or shift the background to #cccccc (4.62:1)
  • AAA: or shift the background to #fafafa (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ab121a as the background.

Brands using this color

Fonts for this mood

#ab121a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ab121a
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 #ab121a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ab121a-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