Color

#511a1d

#511a1d
hex#511a1d
rgbrgb(81, 26, 29)
hslhsl(357, 51%, 21%)
oklchoklch(0.305 0.082 20.2)
Closest name: Chocolate Rush (#4e1b0b)Relative luminance 0.0258

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1a514e

#511a38 · #51331a

#1d511a · #1a1d51

Split-complementary

Open in tool →

#1a5133 · #1a3851

#38511a · #1a514e · #331a51

Contrast

#511a1d as textRatioAAAA largeAAAFix
Aaon white
13.86:1passpasspassPasses AAA — no fix needed.
Aaon black
1.52:1failfailfail
  • AA: use #c64e54 as the text (4.62:1)
  • AAA: use #d57c81 as the text (7.03:1)
  • AA: or shift the background to #949494 (4.57:1)
  • AAA: or shift the background to #bababa (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #511a1d 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

#511a1d reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #511a1d
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 #511a1d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/511a1d-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