Color

#b4c13e

#b4c13e
hex#b4c13e
rgbrgb(180, 193, 62)
hslhsl(66, 51%, 50%)
oklchoklch(0.777 0.152 114.9)
Closest name: Celery (#b4c04c)Relative luminance 0.4819

Colors that go with #b4c13e

Charcoal, Cornflower Blue and Deep Sky 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 →

#4b3ec1

#c18d3e · #72c13e

#3eb4c1 · #c13eb4

Split-complementary

Open in tool →

#3e72c1 · #8d3ec1

#3ec18d · #4b3ec1 · #c13e72

Contrast

#b4c13e as textRatioAAAA largeAAAFix
Aaon white
1.97:1failfailfail
  • AA: use #737b28 as the text (4.57:1)
  • AAA: use #565c1e as the text (7.13:1)
  • AA: or shift the background to #474747 (4.71:1)
  • AAA: or shift the background to #2b2b2b (7.17:1)
Aaon black
10.64:1passpasspassPasses 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 #b4c13e 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 #b4c13e
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 #b4c13e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b4c13e-b8bea2-4e86df-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