Color

#b9cc28

#b9cc28
hex#b9cc28
rgbrgb(185, 204, 40)
hslhsl(67, 67%, 48%)
oklchoklch(0.804 0.174 116.5)
Closest name: yellowgreen (#9acd32)Relative luminance 0.5365

Colors that go with #b9cc28

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.

Real palettes that use #b9cc28

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#3c28cc

#cc8e28 · #67cc28

#28b9cc · #cc28b9

Split-complementary

Open in tool →

#2867cc · #8e28cc

#28cc8e · #3c28cc · #cc2867

Contrast

#b9cc28 as textRatioAAAA largeAAAFix
Aaon white
1.79:1failfailfail
  • AA: use #707b18 as the text (4.63:1)
  • AAA: use #555e13 as the text (7.01:1)
  • AA: or shift the background to #4f4f4f (4.58:1)
  • AAA: or shift the background to #333333 (7.06:1)
Aaon black
11.73:1passpasspassPasses 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 #b9cc28 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 #b9cc28
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 #b9cc28 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b9cc28-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