Color

#515b2f

#515b2f
hex#515b2f
rgbrgb(81, 91, 47)
hslhsl(74, 32%, 27%)
oklchoklch(0.451 0.066 119.6)
Closest name: Cypress (#585d40)Relative luminance 0.0944

Colors that go with #515b2f

Charcoal, Champagne and Copper 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 #515b2f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#392f5b

#5b4f2f · #3b5b2f

#2f515b · #5b2f51

Split-complementary

Open in tool →

#2f3b5b · #4f2f5b

#2f5b4f · #392f5b · #5b2f3b

Contrast

#515b2f as textRatioAAAA largeAAAFix
Aaon white
7.27:1passpasspassPasses AAA — no fix needed.
Aaon black
2.89:1failfailfail
  • AA: use #6e7d40 as the text (4.67:1)
  • AAA: use #8c9e51 as the text (7.12:1)
  • AA: or shift the background to #cccccc (4.53:1)
  • AAA: or shift the background to #fcfcfc (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 #515b2f 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

#515b2f reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #515b2f
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 #515b2f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/515b2f-b4bea2-4e72df-242d1f-f1efe9?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