Color

#518a77

#518a77
hex#518a77
rgbrgb(81, 138, 119)
hslhsl(160, 26%, 43%)
oklchoklch(0.588 0.067 170.6)
Closest name: Highlands (#449084)Relative luminance 0.2126

Colors that go with #518a77

Charcoal, Copper and Champagne 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 #518a77

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8a5164

#518a5b · #51818a

#77518a · #8a7751

Split-complementary

Open in tool →

#8a5181 · #8a5b51

#5b518a · #8a5164 · #818a51

Contrast

#518a77 as textRatioAAAA largeAAAFix
Aaon white
4:1failpassfail
  • AA: use #4a7d6c as the text (4.73:1)
  • AAA: use #396053 as the text (7.07:1)
  • AA: or shift the background to #141414 (4.61:1)
Aaon black
5.25:1passpassfail
  • AAA: use #62a38d as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #518a77 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 #518a77
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 #518a77 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/518a77-a2beb8-d459be-1f2c2d-e9f1eb?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