Color

#b3d312

#b3d312
hex#b3d312
rgbrgb(179, 211, 18)
hslhsl(70, 84%, 45%)
oklchoklch(0.815 0.191 120.2)
Closest name: Conifer (#b1dd52)Relative luminance 0.5622

Colors that go with #b3d312

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 →

#3212d3

#d39312 · #53d312

#12b3d3 · #d312b3

Split-complementary

Open in tool →

#1253d3 · #9312d3

#12d393 · #3212d3 · #d31253

Contrast

#b3d312 as textRatioAAAA largeAAAFix
Aaon white
1.72:1failfailfail
  • AA: use #6b7f0b as the text (4.5:1)
  • AAA: use #505e08 as the text (7.13:1)
  • AA: or shift the background to #525252 (4.56:1)
  • AAA: or shift the background to #363636 (7.05:1)
Aaon black
12.24:1passpasspassPasses 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 #b3d312 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 #b3d312
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 #b3d312 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b3d312-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