Color

#bbff00

#bbff00
hex#bbff00
rgbrgb(187, 255, 0)
hslhsl(76, 100%, 50%)
oklchoklch(0.92 0.236 126.7)
Closest name: Atomic Lime (#b9ff03)Relative luminance 0.8208

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4400ff

#ffc400 · #3cff00

#00bbff · #ff00bb

Split-complementary

Open in tool →

#003cff · #c300ff

#00ffc3 · #4400ff · #ff003c

Contrast

#bbff00 as textRatioAAAA largeAAAFix
Aaon white
1.21:1failfailfail
  • AA: use #5e8000 as the text (4.6:1)
  • AAA: use #476100 as the text (7.05:1)
  • AA: or shift the background to #696969 (4.55:1)
  • AAA: or shift the background to #4d4d4d (7.01:1)
Aaon black
17.42:1passpasspassPasses 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 #bbff00 as the background.

Brands using this color

mcpConnect your agent — build around #bbff00
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #bbff00 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bbff00-b3bea2-4e6edf-232d1f-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