Color

#81ef9a

#81ef9a
hex#81ef9a
rgbrgb(129, 239, 154)
hslhsl(134, 77%, 72%)
oklchoklch(0.865 0.156 149.5)
Closest name: lightgreen (#90ee90)Relative luminance 0.6873

Colors that go with #81ef9a

Charcoal, 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 →

#ef81d5

#9eef81 · #81efd1

#9a81ef · #ef9a81

Split-complementary

Open in tool →

#d181ef · #ef819e

#819eef · #ef81d5 · #efd181

Contrast

#81ef9a as textRatioAAAA largeAAAFix
Aaon white
1.42:1failfailfail
  • AA: use #12872d as the text (4.64:1)
  • AAA: use #0d6321 as the text (7.44:1)
  • AA: or shift the background to #5e5e5e (4.55:1)
  • AAA: or shift the background to #424242 (7.06:1)
Aaon black
14.75:1passpasspassPasses 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 #81ef9a as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#81ef9a reads as vivid, light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #81ef9a
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 #81ef9a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81ef9a-a2beac-b559d4-1f2d29-ebf1e9?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