Color

#81ef5d

#81ef5d
hex#81ef5d
rgbrgb(129, 239, 93)
hslhsl(105, 82%, 65%)
oklchoklch(0.857 0.21 138.8)
Closest name: Herbivore (#88ee77)Relative luminance 0.6719

Colors that go with #81ef5d

Deep Sky Blue, Taupe and Violet 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 →

#ca5def

#caef5d · #5def81

#5d81ef · #ef5d81

Split-complementary

Open in tool →

#815def · #ef5dca

#5dcaef · #ca5def · #ef815d

Contrast

#81ef5d as textRatioAAAA largeAAAFix
Aaon white
1.45:1failfailfail
  • AA: use #2c870d as the text (4.59:1)
  • AAA: use #21660a as the text (7.07:1)
  • AA: or shift the background to #5c5c5c (4.6:1)
  • AAA: or shift the background to #404040 (7.13:1)
Aaon black
14.44:1passpasspassPasses 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 #81ef5d 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 #81ef5d
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 #81ef5d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81ef5d-a6bea2-754edf-1f2d22-eff1e9?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