Color

#cfc90c

#cfc90c
hex#cfc90c
rgbrgb(207, 201, 12)
hslhsl(58, 89%, 43%)
oklchoklch(0.814 0.173 107.5)
Closest name: Bitter Lemon (#d2db32)Relative luminance 0.5507

Colors that go with #cfc90c

Charcoal, Deep 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 →

#0c13cf

#cf670c · #74cf0c

#0ccfc9 · #c90ccf

Split-complementary

Open in tool →

#0c74cf · #670ccf

#0ccf67 · #0c13cf · #cf0c74

Contrast

#cfc90c as textRatioAAAA largeAAAFix
Aaon white
1.75:1failfailfail
  • AA: use #7d7907 as the text (4.56:1)
  • AAA: use #5c5905 as the text (7.28:1)
  • AA: or shift the background to #4f4f4f (4.69:1)
  • AAA: or shift the background to #333333 (7.23:1)
Aaon black
12.01:1passpasspassPasses 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 #cfc90c 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

#cfc90c reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #cfc90c
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 #cfc90c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cfc90c-bcbea2-4e99df-282d1f-f1ede9?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