Color

#b4d22d

#b4d22d
hex#b4d22d
rgbrgb(180, 210, 45)
hslhsl(71, 65%, 50%)
oklchoklch(0.814 0.18 120)
Closest name: Badass Grass (#b4da55)Relative luminance 0.5599

Colors that go with #b4d22d

Cornflower Blue, Deep Sky Blue and Blue 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 →

#4b2dd2

#d29e2d · #61d22d

#2db4d2 · #d22db4

Split-complementary

Open in tool →

#2d61d2 · #9e2dd2

#2dd29e · #4b2dd2 · #d22d61

Contrast

#b4d22d as textRatioAAAA largeAAAFix
Aaon white
1.72:1failfailfail
  • AA: use #6c7e1b as the text (4.53:1)
  • AAA: use #4f5d14 as the text (7.22:1)
  • AA: or shift the background to #525252 (4.54:1)
  • AAA: or shift the background to #363636 (7.02:1)
Aaon black
12.2:1passpasspassPasses 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 #b4d22d 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 #b4d22d
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 #b4d22d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b4d22d-b6bea2-4e7adf-252d1f-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