Color

#81090d

#81090d
hex#81090d
rgbrgb(129, 9, 13)
hslhsl(358, 87%, 27%)
oklchoklch(0.384 0.15 27.3)
Closest name: maroon (#800000)Relative luminance 0.0489

Tints & shades

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

Harmonies

Complementary

Open in tool →

#09817d

#810949 · #814109

#0d8109 · #090d81

Split-complementary

Open in tool →

#098141 · #094981

#498109 · #09817d · #410981

Contrast

#81090d as textRatioAAAA largeAAAFix
Aaon white
10.62:1passpasspassPasses AAA — no fix needed.
Aaon black
1.98:1failfailfail
  • AA: use #ea1017 as the text (4.58:1)
  • AAA: use #f56b70 as the text (7.22:1)
  • AA: or shift the background to #ababab (4.62:1)
  • AAA: or shift the background to #d4d4d4 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #81090d 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

#81090d reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #81090d
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #81090d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81090d-c49f9c-62cb95-2d251f-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