Color

#b9b331

#b9b331
hex#b9b331
rgbrgb(185, 179, 49)
hslhsl(57, 58%, 46%)
oklchoklch(0.749 0.145 106.7)
Closest name: Celery (#b4c04c)Relative luminance 0.4278

Colors that go with #b9b331

Charcoal, Lilac and Cadet 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 →

#3138b9

#b96e31 · #7cb931

#31b9b3 · #b331b9

Split-complementary

Open in tool →

#317cb9 · #6e31b9

#31b96e · #3138b9 · #b9317c

Contrast

#b9b331 as textRatioAAAA largeAAAFix
Aaon white
2.2:1failfailfail
  • AA: use #7d7821 as the text (4.58:1)
  • AAA: use #5d5919 as the text (7.22:1)
  • AA: or shift the background to #424242 (4.57:1)
  • AAA: or shift the background to #242424 (7.06:1)
Aaon black
9.56:1passpasspassPasses 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 #b9b331 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

#b9b331 reads as warm. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b9b331
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 #b9b331 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b9b331-bcbea2-4e9bdf-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