Color

#cdfe1b

#cdfe1b
hex#cdfe1b
rgbrgb(205, 254, 27)
hslhsl(73, 99%, 55%)
oklchoklch(0.93 0.223 122.8)
Closest name: Chartreuse (#c1f80a)Relative luminance 0.8394

Colors that go with #cdfe1b

Plum, Violet and Charcoal 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 →

#4c1bfe

#febd1b · #5bfe1b

#1bcdfe · #fe1bcd

Split-complementary

Open in tool →

#1b5bfe · #bd1bfe

#1bfebd · #4c1bfe · #fe1b5b

Contrast

#cdfe1b as textRatioAAAA largeAAAFix
Aaon white
1.18:1failfailfail
  • AA: use #647f01 as the text (4.59:1)
  • AAA: use #4c6000 as the text (7.05:1)
  • AA: or shift the background to #6b6b6b (4.51:1)
  • AAA: or shift the background to #4d4d4d (7.16:1)
Aaon black
17.79:1passpasspassPasses 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 #cdfe1b as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #cdfe1b
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 #cdfe1b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cdfe1b-b5bea2-4e75df-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