Color

#cfd91c

#cfd91c
hex#cfd91c
rgbrgb(207, 217, 28)
hslhsl(63, 77%, 48%)
oklchoklch(0.849 0.185 113.1)
Closest name: Bitter Lemon (#d2db32)Relative luminance 0.6297

Colors that go with #cfd91c

Charcoal, Crimson and Taupe 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.

Real palettes that use #cfd91c

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#261cd9

#d9841c · #71d91c

#1ccfd9 · #d91ccf

Split-complementary

Open in tool →

#1c71d9 · #841cd9

#1cd984 · #261cd9 · #d91c71

Contrast

#cfd91c as textRatioAAAA largeAAAFix
Aaon white
1.54:1failfailfail
  • AA: use #757a10 as the text (4.62:1)
  • AAA: use #565a0c as the text (7.33:1)
  • AA: or shift the background to #595959 (4.53:1)
  • AAA: or shift the background to #3d3d3d (7.03:1)
Aaon black
13.59:1passpasspassPasses 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 #cfd91c as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #cfd91c
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 #cfd91c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cfd91c-b9bea2-4e8ddf-262d1f-f1eee9?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