Color

#518d4e

#518d4e
hex#518d4e
rgbrgb(81, 141, 78)
hslhsl(117, 29%, 43%)
oklchoklch(0.586 0.112 143)
Closest name: Fern (#548d44)Relative luminance 0.2135

Colors that go with #518d4e

Charcoal, Copper and Crimson 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 →

#8a4e8d

#718d4e · #4e8d6a

#4e518d · #8d4e51

Split-complementary

Open in tool →

#6a4e8d · #8d4e71

#4e718d · #8a4e8d · #8d6a4e

Contrast

#518d4e as textRatioAAAA largeAAAFix
Aaon white
3.98:1failpassfail
  • AA: use #498047 as the text (4.71:1)
  • AAA: use #375f35 as the text (7.37:1)
  • AA: or shift the background to #141414 (4.62:1)
Aaon black
5.27:1passpassfail
  • AAA: use #61a65e as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #518d4e as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #518d4e
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 #518d4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/518d4e-a2bea4-924edf-1f2d25-edf1e9?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