Color

#b7ef01

#b7ef01
hex#b7ef01
rgbrgb(183, 239, 1)
hslhsl(74, 99%, 47%)
oklchoklch(0.881 0.221 125)
Closest name: Chartreuse (#c1f80a)Relative luminance 0.718

Colors that go with #b7ef01

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 →

#3901ef

#efaf01 · #40ef01

#01b7ef · #ef01b7

Split-complementary

Open in tool →

#0140ef · #af01ef

#01efaf · #3901ef · #ef0140

Contrast

#b7ef01 as textRatioAAAA largeAAAFix
Aaon white
1.37:1failfailfail
  • AA: use #617f01 as the text (4.62:1)
  • AAA: use #4a6000 as the text (7.08:1)
  • AA: or shift the background to #616161 (4.53:1)
  • AAA: or shift the background to #454545 (7.01:1)
Aaon black
15.36:1passpasspassPasses 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 #b7ef01 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 #b7ef01
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 #b7ef01 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b7ef01-b4bea2-4e72df-242d1f-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