Color

#b8ef39

#b8ef39
hex#b8ef39
rgbrgb(184, 239, 57)
hslhsl(78, 85%, 58%)
oklchoklch(0.883 0.206 125.6)
Closest name: Inchworm (#b2ec5d)Relative luminance 0.7222

Colors that go with #b8ef39

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 →

#6f39ef

#efcb39 · #5def39

#39b8ef · #ef39b8

Split-complementary

Open in tool →

#395def · #cb39ef

#39efcb · #6f39ef · #ef395d

Contrast

#b8ef39 as textRatioAAAA largeAAAFix
Aaon white
1.36:1failfailfail
  • AA: use #5c7f0a as the text (4.67:1)
  • AAA: use #445e08 as the text (7.37:1)
  • AA: or shift the background to #616161 (4.55:1)
  • AAA: or shift the background to #454545 (7.05:1)
Aaon black
15.44:1passpasspassPasses 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 #b8ef39 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 #b8ef39
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 #b8ef39 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b8ef39-b2bea2-4e69df-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