Color

#c9d12e

#c9d12e
hex#c9d12e
rgbrgb(201, 209, 46)
hslhsl(63, 64%, 50%)
oklchoklch(0.828 0.172 112.5)
Closest name: Bitter Lemon (#d2db32)Relative luminance 0.5822

Colors that go with #c9d12e

Charcoal, Cornflower Blue and Deep Sky Blue 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 #c9d12e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#362ed1

#d1882e · #77d12e

#2ec9d1 · #d12ec9

Split-complementary

Open in tool →

#2e77d1 · #882ed1

#2ed188 · #362ed1 · #d12e77

Contrast

#c9d12e as textRatioAAAA largeAAAFix
Aaon white
1.66:1failfailfail
  • AA: use #75791b as the text (4.66:1)
  • AAA: use #585c14 as the text (7.1:1)
  • AA: or shift the background to #545454 (4.56:1)
  • AAA: or shift the background to #383838 (7.06:1)
Aaon black
12.64:1passpasspassPasses 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 #c9d12e 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 #c9d12e
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 #c9d12e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c9d12e-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