Color

#b0ff42

#b0ff42
hex#b0ff42
rgbrgb(176, 255, 66)
hslhsl(85, 100%, 63%)
oklchoklch(0.916 0.224 130.1)
Closest name: greenyellow (#adff2f)Relative luminance 0.8114

Colors that go with #b0ff42

Violet, 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 →

#9142ff

#ffef42 · #52ff42

#42b0ff · #ff42b0

Split-complementary

Open in tool →

#4252ff · #ef42ff

#42ffef · #9142ff · #ff4252

Contrast

#b0ff42 as textRatioAAAA largeAAAFix
Aaon white
1.22:1failfailfail
  • AA: use #4a8000 as the text (4.8:1)
  • AAA: use #396100 as the text (7.28:1)
  • AA: or shift the background to #696969 (4.5:1)
  • AAA: or shift the background to #4a4a4a (7.27:1)
Aaon black
17.23:1passpasspassPasses 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 #b0ff42 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 #b0ff42
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 #b0ff42 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b0ff42-afbea2-4e58df-212d1f-f1f0e9?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