Color

#511d1a

#511d1a
hex#511d1a
rgbrgb(81, 29, 26)
hslhsl(3, 51%, 21%)
oklchoklch(0.309 0.079 26)
Closest name: Chocolate Rush (#4e1b0b)Relative luminance 0.027

Colors that go with #511d1a

Charcoal, Royal Blue and Sienna lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1a4e51

#511a33 · #51381a

#1a511d · #1d1a51

Split-complementary

Open in tool →

#1a5138 · #1a3351

#33511a · #1a4e51 · #381a51

Contrast

#511d1a as textRatioAAAA largeAAAFix
Aaon white
13.63:1passpasspassPasses AAA — no fix needed.
Aaon black
1.54:1failfailfail
  • AA: use #c4504a as the text (4.59:1)
  • AAA: use #d5817c as the text (7.26:1)
  • AA: or shift the background to #969696 (4.61:1)
  • AAA: or shift the background to #bababa (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #511d1a 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

#511d1a reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #511d1a
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

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

analyze #511d1a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/511d1a-c4a39c-62cb9d-2d261f-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