Color

#b3d40c

#b3d40c
hex#b3d40c
rgbrgb(179, 212, 12)
hslhsl(70, 89%, 44%)
oklchoklch(0.817 0.193 120.4)
Closest name: Conifer (#b1dd52)Relative luminance 0.567

Colors that go with #b3d40c

Deep Sky Blue, Blue and Charcoal 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 →

#2e0cd4

#d4910c · #4fd40c

#0cb3d4 · #d40cb3

Split-complementary

Open in tool →

#0c4fd4 · #910cd4

#0cd491 · #2e0cd4 · #d40c4f

Contrast

#b3d40c as textRatioAAAA largeAAAFix
Aaon white
1.7:1failfailfail
  • AA: use #6a7d07 as the text (4.62:1)
  • AAA: use #4d5c05 as the text (7.37:1)
  • AA: or shift the background to #525252 (4.59:1)
  • AAA: or shift the background to #363636 (7.1:1)
Aaon black
12.34:1passpasspassPasses 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 #b3d40c 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 #b3d40c
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 #b3d40c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b3d40c-b6bea2-4e7cdf-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