Color

#b3c337

#b3c337
hex#b3c337
rgbrgb(179, 195, 55)
hslhsl(67, 56%, 49%)
oklchoklch(0.78 0.159 115.9)
Closest name: Celery (#b4c04c)Relative luminance 0.4889

Colors that go with #b3c337

Cornflower Blue, Deep Sky Blue and Champagne 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 →

#4737c3

#c38d37 · #6dc337

#37b3c3 · #c337b3

Split-complementary

Open in tool →

#376dc3 · #8d37c3

#37c38d · #4737c3 · #c3376d

Contrast

#b3c337 as textRatioAAAA largeAAAFix
Aaon white
1.95:1failfailfail
  • AA: use #717b23 as the text (4.61:1)
  • AAA: use #545b1a as the text (7.27:1)
  • AA: or shift the background to #4a4a4a (4.55:1)
  • AAA: or shift the background to #2b2b2b (7.27:1)
Aaon black
10.78:1passpasspassPasses 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 #b3c337 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 #b3c337
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 #b3c337 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b3c337-b8bea2-4e83df-262d1f-f1eee9?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