Color

#b4cf02

#b4cf02
hex#b4cf02
rgbrgb(180, 207, 2)
hslhsl(68, 98%, 41%)
oklchoklch(0.806 0.189 118.8)
Closest name: yellowgreen (#9acd32)Relative luminance 0.5433

Colors that go with #b4cf02

Cornflower Blue, Deep Sky Blue 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 →

#1d02cf

#cf8402 · #4dcf02

#02b4cf · #cf02b4

Split-complementary

Open in tool →

#024dcf · #8402cf

#02cf84 · #1d02cf · #cf024d

Contrast

#b4cf02 as textRatioAAAA largeAAAFix
Aaon white
1.77:1failfailfail
  • AA: use #6e7e01 as the text (4.52:1)
  • AAA: use #4f5b01 as the text (7.42:1)
  • AA: or shift the background to #4f4f4f (4.63:1)
  • AAA: or shift the background to #333333 (7.14:1)
Aaon black
11.87:1passpasspassPasses 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 #b4cf02 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 #b4cf02
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 #b4cf02 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b4cf02-b7bea2-4e81df-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