Color

#cdf91a

#cdf91a
hex#cdf91a
rgbrgb(205, 249, 26)
hslhsl(72, 95%, 54%)
oklchoklch(0.918 0.218 121.9)
Closest name: Chartreuse (#c1f80a)Relative luminance 0.8081

Colors that go with #cdf91a

Plum, Violet and 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#471af9

#f9b61a · #5df91a

#1acdf9 · #f91acd

Split-complementary

Open in tool →

#1a5df9 · #b61af9

#1af9b6 · #471af9 · #f91a5d

Contrast

#cdf91a as textRatioAAAA largeAAAFix
Aaon white
1.22:1failfailfail
  • AA: use #647c03 as the text (4.74:1)
  • AAA: use #4c5e02 as the text (7.22:1)
  • AA: or shift the background to #666666 (4.69:1)
  • AAA: or shift the background to #4a4a4a (7.24:1)
Aaon black
17.16:1passpasspassPasses 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 #cdf91a as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #cdf91a
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 #cdf91a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cdf91a-b5bea2-4e77df-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