Color

#81bd3d

#81bd3d
hex#81bd3d
rgbrgb(129, 189, 61)
hslhsl(88, 51%, 49%)
oklchoklch(0.732 0.17 131.2)
Closest name: Citrus (#9fb70a)Relative luminance 0.414

Colors that go with #81bd3d

Charcoal, Dark Olive Green and Royal Blue 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 #81bd3d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#793dbd

#bdb83d · #41bd3d

#3d81bd · #bd3d81

Split-complementary

Open in tool →

#3d41bd · #b83dbd

#3dbdb8 · #793dbd · #bd3d41

Contrast

#81bd3d as textRatioAAAA largeAAAFix
Aaon white
2.26:1failfailfail
  • AA: use #577f29 as the text (4.69:1)
  • AAA: use #42601f as the text (7.18:1)
  • AA: or shift the background to #404040 (4.58:1)
  • AAA: or shift the background to #212121 (7.12:1)
Aaon black
9.28:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #81bd3d as the background.

Brands using this color

mcpConnect your agent — build around #81bd3d
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 #81bd3d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81bd3d-aebea2-4e51df-212d1f-f1f1e9?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