Color

#81efc4

#81efc4
hex#81efc4
rgbrgb(129, 239, 196)
hslhsl(157, 77%, 72%)
oklchoklch(0.875 0.119 166.2)
Closest name: Jittery Jade (#77eebb)Relative luminance 0.7039

Colors that go with #81efc4

Charcoal, Plum 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 →

#ef81ab

#81ef8d · #81e2ef

#c481ef · #efc481

Split-complementary

Open in tool →

#ef81e2 · #ef8d81

#8d81ef · #ef81ab · #e2ef81

Contrast

#81efc4 as textRatioAAAA largeAAAFix
Aaon white
1.39:1failfailfail
  • AA: use #12875a as the text (4.53:1)
  • AAA: use #0d6342 as the text (7.29:1)
  • AA: or shift the background to #5e5e5e (4.66:1)
  • AAA: or shift the background to #424242 (7.22:1)
Aaon black
15.08:1passpasspassPasses 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 #81efc4 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

#81efc4 reads as vivid, light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #81efc4
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 #81efc4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81efc4-a2beb7-d459c4-1f2c2d-e9f1ea?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