Color

#bbb511

#bbb511
hex#bbb511
rgbrgb(187, 181, 17)
hslhsl(58, 83%, 40%)
oklchoklch(0.754 0.159 107.2)
Closest name: Celery (#b4c04c)Relative luminance 0.4365

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1117bb

#bb6011 · #6cbb11

#11bbb5 · #b511bb

Split-complementary

Open in tool →

#116cbb · #6011bb

#11bb60 · #1117bb · #bb116c

Contrast

#bbb511 as textRatioAAAA largeAAAFix
Aaon white
2.16:1failfailfail
  • AA: use #79760b as the text (4.76:1)
  • AAA: use #5d5b09 as the text (7.08:1)
  • AA: or shift the background to #424242 (4.66:1)
  • AAA: or shift the background to #262626 (7.01:1)
Aaon black
9.73:1passpasspassPasses 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 #bbb511 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#bbb511 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bbb511
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #bbb511 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bbb511-bcbea2-4e99df-282d1f-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