Color

#b4bc15

#b4bc15
hex#b4bc15
rgbrgb(180, 188, 21)
hslhsl(63, 80%, 41%)
oklchoklch(0.763 0.166 112.8)
Closest name: Celery (#b4c04c)Relative luminance 0.4572

Colors that go with #b4bc15

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 →

#1d15bc

#bc7115 · #60bc15

#15b4bc · #bc15b4

Split-complementary

Open in tool →

#1560bc · #7115bc

#15bc71 · #1d15bc · #bc1560

Contrast

#b4bc15 as textRatioAAAA largeAAAFix
Aaon white
2.07:1failfailfail
  • AA: use #767c0e as the text (4.51:1)
  • AAA: use #585c0a as the text (7.12:1)
  • AA: or shift the background to #454545 (4.63:1)
  • AAA: or shift the background to #292929 (7.03:1)
Aaon black
10.14:1passpasspassPasses 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 #b4bc15 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 #b4bc15
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 #b4bc15 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b4bc15-b9bea2-4e8ddf-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