Color

#bdc51b

#bdc51b
hex#bdc51b
rgbrgb(189, 197, 27)
hslhsl(63, 76%, 44%)
oklchoklch(0.791 0.171 112.7)
Closest name: Celery (#b4c04c)Relative luminance 0.5083

Colors that go with #bdc51b

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 →

#231bc5

#c5791b · #68c51b

#1bbdc5 · #c51bbd

Split-complementary

Open in tool →

#1b68c5 · #791bc5

#1bc579 · #231bc5 · #c51b68

Contrast

#bdc51b as textRatioAAAA largeAAAFix
Aaon white
1.88:1failfailfail
  • AA: use #747911 as the text (4.68:1)
  • AAA: use #565a0c as the text (7.33:1)
  • AA: or shift the background to #4a4a4a (4.71:1)
  • AAA: or shift the background to #303030 (7.02:1)
Aaon black
11.17:1passpasspassPasses 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 #bdc51b 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 #bdc51b
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 #bdc51b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bdc51b-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