Color

#81ea66

#81ea66
hex#81ea66
rgbrgb(129, 234, 102)
hslhsl(108, 76%, 66%)
oklchoklch(0.845 0.196 139.6)
Closest name: Herbivore (#88ee77)Relative luminance 0.6447

Colors that go with #81ea66

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 →

#d066ea

#c3ea66 · #66ea8e

#6681ea · #ea6681

Split-complementary

Open in tool →

#8e66ea · #ea66c3

#66c3ea · #d066ea · #ea8e66

Contrast

#81ea66 as textRatioAAAA largeAAAFix
Aaon white
1.51:1failfailfail
  • AA: use #2a8712 as the text (4.59:1)
  • AAA: use #1f630d as the text (7.37:1)
  • AA: or shift the background to #595959 (4.63:1)
  • AAA: or shift the background to #3d3d3d (7.19:1)
Aaon black
13.89:1passpasspassPasses 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 #81ea66 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 #81ea66
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 #81ea66 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81ea66-a4bea2-7c4edf-1f2d23-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