Color

#81f53d

#81f53d
hex#81f53d
rgbrgb(129, 245, 61)
hslhsl(98, 90%, 60%)
oklchoklch(0.869 0.237 136.7)
Closest name: lawngreen (#7cfc00)Relative luminance 0.7031

Colors that go with #81f53d

Violet, Charcoal and Deep Sky 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b13df5

#dcf53d · #3df556

#3d81f5 · #f53d81

Split-complementary

Open in tool →

#563df5 · #f53ddc

#3ddcf5 · #b13df5 · #f5563d

Contrast

#81f53d as textRatioAAAA largeAAAFix
Aaon white
1.39:1failfailfail
  • AA: use #348307 as the text (4.78:1)
  • AAA: use #296605 as the text (7.01:1)
  • AA: or shift the background to #5e5e5e (4.65:1)
  • AAA: or shift the background to #424242 (7.21:1)
Aaon black
15.06:1passpasspassPasses 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 #81f53d 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 #81f53d
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 #81f53d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81f53d-a9bea2-644edf-1f2d20-f0f1e9?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