Color

#511c15

#511c15
hex#511c15
rgbrgb(81, 28, 21)
hslhsl(7, 59%, 20%)
oklchoklch(0.307 0.081 30)
Closest name: Chocolate Rush (#4e1b0b)Relative luminance 0.0263

Tints & shades

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

Harmonies

Complementary

Open in tool →

#154a51

#51152c · #513a15

#15511c · #1c1551

Split-complementary

Open in tool →

#15513a · #152c51

#2c5115 · #154a51 · #3a1551

Contrast

#511c15 as textRatioAAAA largeAAAFix
Aaon white
13.75:1passpasspassPasses AAA — no fix needed.
Aaon black
1.53:1failfailfail
  • AA: use #cc4a38 as the text (4.6:1)
  • AAA: use #da7d71 as the text (7.15:1)
  • AA: or shift the background to #949494 (4.53:1)
  • AAA: or shift the background to #bababa (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 #511c15 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

#511c15 reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #511c15
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 #511c15 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/511c15-c4a59c-62cba4-2d271f-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