Color

#ab121f

#ab121f
hex#ab121f
rgbrgb(171, 18, 31)
hslhsl(355, 81%, 37%)
oklchoklch(0.474 0.183 25)
Closest name: Blood Rush (#aa2222)Relative luminance 0.0919

Colors that go with #ab121f

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 →

#12ab9e

#ab126b · #ab5212

#1fab12 · #121fab

Split-complementary

Open in tool →

#12ab52 · #126bab

#6bab12 · #12ab9e · #5212ab

Contrast

#ab121f as textRatioAAAA largeAAAFix
Aaon white
7.4:1passpasspassPasses AAA — no fix needed.
Aaon black
2.84:1failfailfail
  • AA: use #e71829 as the text (4.56:1)
  • AAA: use #ef6b76 as the text (7.03:1)
  • AA: or shift the background to #cccccc (4.61:1)
  • AAA: or shift the background to #fafafa (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ab121f as the background.

Brands using this color

Fonts for this mood

#ab121f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ab121f
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 #ab121f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ab121f-c49e9c-62cb8f-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