Color

#51383c

#51383c
hex#51383c
rgbrgb(81, 56, 60)
hslhsl(350, 18%, 27%)
oklchoklch(0.371 0.036 8.4)
Closest name: Black Truffle (#463d3e)Relative luminance 0.049

Colors that go with #51383c

Dark Olive 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 #51383c

Tints & shades

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

Harmonies

Complementary

Open in tool →

#38514d

#513849 · #514138

#3d5138 · #383d51

Split-complementary

Open in tool →

#385141 · #384951

#495138 · #38514d · #413851

Contrast

#51383c as textRatioAAAA largeAAAFix
Aaon white
10.6:1passpasspassPasses AAA — no fix needed.
Aaon black
1.98:1failfailfail
  • AA: use #966970 as the text (4.55:1)
  • AAA: use #b08d92 as the text (7.07:1)
  • AA: or shift the background to #ababab (4.62:1)
  • AAA: or shift the background to #d4d4d4 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #51383c 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

#51383c reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #51383c
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 #51383c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51383c-c49c9e-62cb87-2d231f-f1e9ee?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