Color

#a80b0b

#a80b0b
hex#a80b0b
rgbrgb(168, 11, 11)
hslhsl(0, 88%, 35%)
oklchoklch(0.463 0.184 28.6)
Closest name: All Systems Red (#b30103)Relative luminance 0.0859

Colors that go with #a80b0b

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 →

#0ba8a8

#a80b59 · #a8590b

#0ba80b · #0b0ba8

Split-complementary

Open in tool →

#0ba859 · #0b59a8

#59a80b · #0ba8a8 · #590ba8

Contrast

#a80b0b as textRatioAAAA largeAAAFix
Aaon white
7.73:1passpasspassPasses AAA — no fix needed.
Aaon black
2.72:1failfailfail
  • AA: use #eb0f0f as the text (4.61:1)
  • AAA: use #f66a6a as the text (7.19:1)
  • AA: or shift the background to #c7c7c7 (4.57:1)
  • AAA: or shift the background to #f5f5f5 (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 #a80b0b as the background.

Brands using this color

Fonts for this mood

#a80b0b reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a80b0b
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 #a80b0b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a80b0b-c4a19c-62cb98-2d251f-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