Color

#81030a

#81030a
hex#81030a
rgbrgb(129, 3, 10)
hslhsl(357, 95%, 26%)
oklchoklch(0.381 0.153 27.2)
Closest name: maroon (#800000)Relative luminance 0.0475

Tints & shades

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

Harmonies

Complementary

Open in tool →

#03817b

#810349 · #813c03

#0a8103 · #030a81

Split-complementary

Open in tool →

#03813c · #034981

#498103 · #03817b · #3c0381

Contrast

#81030a as textRatioAAAA largeAAAFix
Aaon white
10.76:1passpasspassPasses AAA — no fix needed.
Aaon black
1.95:1failfailfail
  • AA: use #ea0611 as the text (4.53:1)
  • AAA: use #fb656c as the text (7.18:1)
  • AA: or shift the background to #a8a8a8 (4.53:1)
  • AAA: or shift the background to #d1d1d1 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #81030a 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

#81030a reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #81030a
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 #81030a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81030a-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