Color

#b9fe2f

#b9fe2f
hex#b9fe2f
rgbrgb(185, 254, 47)
hslhsl(80, 99%, 59%)
oklchoklch(0.918 0.227 127.5)
Closest name: Atomic Lime (#b9ff03)Relative luminance 0.814

Colors that go with #b9fe2f

Violet, Charcoal and Gold 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 →

#742ffe

#fedb2f · #51fe2f

#2fb9fe · #fe2fb9

Split-complementary

Open in tool →

#2f51fe · #db2ffe

#2ffedb · #742ffe · #fe2f51

Contrast

#b9fe2f as textRatioAAAA largeAAAFix
Aaon white
1.22:1failfailfail
  • AA: use #557f01 as the text (4.75:1)
  • AAA: use #406000 as the text (7.26:1)
  • AA: or shift the background to #696969 (4.52:1)
  • AAA: or shift the background to #4a4a4a (7.29:1)
Aaon black
17.28:1passpasspassPasses 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 #b9fe2f as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #b9fe2f
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 #b9fe2f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b9fe2f-b1bea2-4e64df-232d1f-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