Color

#a81033

#a81033
hex#a81033
rgbrgb(168, 16, 51)
hslhsl(346, 83%, 36%)
oklchoklch(0.47 0.18 17.5)
Closest name: Bindi Red (#b0003c)Relative luminance 0.0893

Colors that go with #a81033

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.

Real palettes that use #a81033

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#10a884

#a8107f · #a83810

#33a810 · #1033a8

Split-complementary

Open in tool →

#10a838 · #107fa8

#7fa810 · #10a884 · #3810a8

Contrast

#a81033 as textRatioAAAA largeAAAFix
Aaon white
7.54:1passpasspassPasses AAA — no fix needed.
Aaon black
2.79:1failfailfail
  • AA: use #e51546 as the text (4.53:1)
  • AAA: use #f16a89 as the text (7.16:1)
  • AA: or shift the background to #c9c9c9 (4.55:1)
  • AAA: or shift the background to #f7f7f7 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a81033 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#a81033 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a81033
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 #a81033 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a81033-c49ca1-62cb80-2d221f-f1e9ef?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