Color

#513839

#513839
hex#513839
rgbrgb(81, 56, 57)
hslhsl(358, 18%, 27%)
oklchoklch(0.37 0.036 16.3)
Closest name: Black Truffle (#463d3e)Relative luminance 0.0487

Colors that go with #513839

Sea Green, Steel Blue and Teal 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.

Real palettes that use #513839

Tints & shades

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

Harmonies

Complementary

Open in tool →

#385150

#513846 · #514438

#395138 · #383951

Split-complementary

Open in tool →

#385144 · #384651

#465138 · #385150 · #443851

Contrast

#513839 as textRatioAAAA largeAAAFix
Aaon white
10.63:1passpasspassPasses AAA — no fix needed.
Aaon black
1.97:1failfailfail
  • AA: use #96696a as the text (4.53:1)
  • AAA: use #b08d8e as the text (7.05:1)
  • AA: or shift the background to #ababab (4.63:1)
  • AAA: or shift the background to #d4d4d4 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #513839 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

#513839 reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #513839
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 #513839 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/513839-c49f9c-62cb95-2d251f-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