Color

#cfff66

#cfff66
hex#cfff66
rgbrgb(207, 255, 102)
hslhsl(79, 100%, 70%)
oklchoklch(0.937 0.186 124.6)
Closest name: Buttercup Glow (#f1f458)Relative luminance 0.8574

Colors that go with #cfff66

Blue, Crimson and Red 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 →

#9666ff

#ffe366 · #82ff66

#66cfff · #ff66cf

Split-complementary

Open in tool →

#6682ff · #e366ff

#66ffe3 · #9666ff · #ff6682

Contrast

#cfff66 as textRatioAAAA largeAAAFix
Aaon white
1.16:1failfailfail
  • AA: use #578000 as the text (4.67:1)
  • AAA: use #426100 as the text (7.14:1)
  • AA: or shift the background to #6b6b6b (4.61:1)
  • AAA: or shift the background to #4f4f4f (7.08:1)
Aaon black
18.15:1passpasspassPasses 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 #cfff66 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

#cfff66 reads as vivid, light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #cfff66
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 #cfff66 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cfff66-b2bea2-4e66df-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