Color

#c4ef81

#c4ef81
hex#c4ef81
rgbrgb(196, 239, 129)
hslhsl(83, 77%, 72%)
oklchoklch(0.898 0.146 126.7)
Closest name: Cucumber Milk (#c2f177)Relative luminance 0.7505

Colors that go with #c4ef81

Charcoal, Sky Blue and Lilac 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 →

#ab81ef

#efe281 · #8def81

#81c4ef · #ef81c4

Split-complementary

Open in tool →

#818def · #e281ef

#81efe2 · #ab81ef · #ef818d

Contrast

#c4ef81 as textRatioAAAA largeAAAFix
Aaon white
1.31:1failfailfail
  • AA: use #578311 as the text (4.51:1)
  • AAA: use #3f5f0c as the text (7.36:1)
  • AA: or shift the background to #636363 (4.58:1)
  • AAA: or shift the background to #474747 (7.08:1)
Aaon black
16.01:1passpasspassPasses 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 #c4ef81 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

#c4ef81 reads as vivid, light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #c4ef81
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 #c4ef81 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c4ef81-b0bea2-4e5ddf-222d1f-f1f0e9?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