Color

#bbbf3b

#bbbf3b
hex#bbbf3b
rgbrgb(187, 191, 59)
hslhsl(62, 53%, 49%)
oklchoklch(0.778 0.15 111.1)
Closest name: Celery (#b4c04c)Relative luminance 0.4814

Colors that go with #bbbf3b

Charcoal, Deep Sky Blue and Lilac 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 →

#3f3bbf

#bf813b · #79bf3b

#3bbbbf · #bf3bbb

Split-complementary

Open in tool →

#3b79bf · #813bbf

#3bbf81 · #3f3bbf · #bf3b79

Contrast

#bbbf3b as textRatioAAAA largeAAAFix
Aaon white
1.98:1failfailfail
  • AA: use #767925 as the text (4.63:1)
  • AAA: use #585a1c as the text (7.26:1)
  • AA: or shift the background to #474747 (4.7:1)
  • AAA: or shift the background to #2b2b2b (7.17:1)
Aaon black
10.63:1passpasspassPasses 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 #bbbf3b 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 #bbbf3b
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 #bbbf3b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bbbf3b-babea2-4e8fdf-272d1f-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