Color

#cef55c

#cef55c
hex#cef55c
rgbrgb(206, 245, 92)
hslhsl(75, 88%, 66%)
oklchoklch(0.914 0.182 122.2)
Closest name: Cucumber Milk (#c2f177)Relative luminance 0.792

Colors that go with #cef55c

Plum, Blue and Charcoal 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 →

#825cf5

#f5ce5c · #82f55c

#5ccef5 · #f55cce

Split-complementary

Open in tool →

#5c82f5 · #ce5cf5

#5cf5ce · #825cf5 · #f55c82

Contrast

#cef55c as textRatioAAAA largeAAAFix
Aaon white
1.25:1failfailfail
  • AA: use #5f7d08 as the text (4.75:1)
  • AAA: use #496006 as the text (7.1:1)
  • AA: or shift the background to #666666 (4.6:1)
  • AAA: or shift the background to #4a4a4a (7.11:1)
Aaon black
16.84:1passpasspassPasses 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 #cef55c as the background.

Brands using this color

mcpConnect your agent — build around #cef55c
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 #cef55c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cef55c-b4bea2-4e70df-242d1f-f1efe9?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