Color

#515b00

#515b00
hex#515b00
rgbrgb(81, 91, 0)
hslhsl(67, 100%, 18%)
oklchoklch(0.447 0.103 116.9)
Closest name: Forestial Outpost (#556611)Relative luminance 0.0923

Colors that go with #515b00

Charcoal, Sage Green and Taupe 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 #515b00

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0b005c

#5c3900 · #235c00

#00515c · #5c0051

Split-complementary

Open in tool →

#00235c · #39005c

#005c39 · #0b005c · #5c0023

Contrast

#515b00 as textRatioAAAA largeAAAFix
Aaon white
7.38:1passpasspassPasses AAA — no fix needed.
Aaon black
2.85:1failfailfail
  • AA: use #718000 as the text (4.79:1)
  • AAA: use #8c9e00 as the text (7.01:1)
  • AA: or shift the background to #cccccc (4.59:1)
  • AAA: or shift the background to #fafafa (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #515b00 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

#515b00 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #515b00
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 #515b00 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/515b00-b8bea2-4e83df-262d1f-f1eee9?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