Color

#ceef81

#ceef81
hex#ceef81
rgbrgb(206, 239, 129)
hslhsl(78, 77%, 72%)
oklchoklch(0.905 0.142 123)
Closest name: Cucumber Milk (#c2f177)Relative luminance 0.7644

Colors that go with #ceef81

Charcoal, Lilac and Crimson 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 →

#a281ef

#efd981 · #97ef81

#81ceef · #ef81ce

Split-complementary

Open in tool →

#8197ef · #d981ef

#81efd9 · #a281ef · #ef8197

Contrast

#ceef81 as textRatioAAAA largeAAAFix
Aaon white
1.29:1failfailfail
  • AA: use #5d7e10 as the text (4.71:1)
  • AAA: use #465f0c as the text (7.23:1)
  • AA: or shift the background to #636363 (4.66:1)
  • AAA: or shift the background to #474747 (7.21:1)
Aaon black
16.29:1passpasspassPasses 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 #ceef81 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

#ceef81 reads as vivid, light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ceef81
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 #ceef81 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ceef81-b2bea2-4e69df-232d1f-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