Color

#cff401

#cff401
hex#cff401
rgbrgb(207, 244, 1)
hslhsl(69, 99%, 48%)
oklchoklch(0.908 0.216 120.2)
Closest name: Chartreuse (#c1f80a)Relative luminance 0.7797

Colors that go with #cff401

Blue, Crimson and Red 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 →

#2601f4

#f49f01 · #56f401

#01cff4 · #f401cf

Split-complementary

Open in tool →

#0156f4 · #9f01f4

#01f49f · #2601f4 · #f40156

Contrast

#cff401 as textRatioAAAA largeAAAFix
Aaon white
1.27:1failfailfail
  • AA: use #687a01 as the text (4.8:1)
  • AAA: use #4e5b00 as the text (7.45:1)
  • AA: or shift the background to #666666 (4.54:1)
  • AAA: or shift the background to #4a4a4a (7:1)
Aaon black
16.59:1passpasspassPasses 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 #cff401 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 #cff401
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 #cff401 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cff401-b7bea2-4e7edf-252d1f-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