Color

#510d01

#510d01
hex#510d01
rgbrgb(81, 13, 1)
hslhsl(9, 98%, 16%)
oklchoklch(0.285 0.101 33.6)
Closest name: Burned (#520b00)Relative luminance 0.0204

Tints & shades

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

Harmonies

Complementary

Open in tool →

#014551

#51011d · #513501

#01510d · #0d0151

Split-complementary

Open in tool →

#015135 · #011d51

#1d5101 · #014551 · #350151

Contrast

#510d01 as textRatioAAAA largeAAAFix
Aaon white
14.92:1passpasspassPasses AAA — no fix needed.
Aaon black
1.41:1failfailfail
  • AA: use #e32402 as the text (4.52:1)
  • AAA: use #fd6449 as the text (7.1:1)
  • AA: or shift the background to #8f8f8f (4.61:1)
  • AAA: or shift the background to #b3b3b3 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #510d01 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

#510d01 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #510d01
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 #510d01 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/510d01-c4a79c-62cba8-2d271f-f1e9ec?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