Color

#a3141b

#a3141b
hex#a3141b
rgbrgb(163, 20, 27)
hslhsl(357, 78%, 36%)
oklchoklch(0.459 0.175 26)
Closest name: Bleeding Crimson (#9b1414)Relative luminance 0.0837

Colors that go with #a3141b

Royal Blue, Teal and Champagne 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 →

#14a39c

#a31463 · #a35514

#1ba314 · #141ba3

Split-complementary

Open in tool →

#14a355 · #1463a3

#63a314 · #14a39c · #5514a3

Contrast

#a3141b as textRatioAAAA largeAAAFix
Aaon white
7.86:1passpasspassPasses AAA — no fix needed.
Aaon black
2.67:1failfailfail
  • AA: use #e4212a as the text (4.55:1)
  • AAA: use #ed6e74 as the text (7.08:1)
  • AA: or shift the background to #c4c4c4 (4.5:1)
  • AAA: or shift the background to #f2f2f2 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a3141b as the background.

Brands using this color

Fonts for this mood

#a3141b reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a3141b
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 #a3141b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a3141b-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