Color

#bfbf3b

#bfbf3b
hex#bfbf3b
rgbrgb(191, 191, 59)
hslhsl(60, 53%, 49%)
oklchoklch(0.781 0.149 109.4)
Closest name: Celery (#b4c04c)Relative luminance 0.4865

Colors that go with #bfbf3b

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 →

#3b3bbf

#bf7d3b · #7dbf3b

#3bbfbf · #bf3bbf

Split-complementary

Open in tool →

#3b7dbf · #7d3bbf

#3bbf7d · #3b3bbf · #bf3b7d

Contrast

#bfbf3b as textRatioAAAA largeAAAFix
Aaon white
1.96:1failfailfail
  • AA: use #797925 as the text (4.59:1)
  • AAA: use #5a5a1c as the text (7.21:1)
  • AA: or shift the background to #4a4a4a (4.53:1)
  • AAA: or shift the background to #2b2b2b (7.24:1)
Aaon black
10.73:1passpasspassPasses 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 #bfbf3b 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 #bfbf3b
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 #bfbf3b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bfbf3b-bbbea2-4e94df-272d1f-f1ede9?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