Color

#b4b031

#b4b031
hex#b4b031
rgbrgb(180, 176, 49)
hslhsl(58, 57%, 45%)
oklchoklch(0.738 0.142 107.6)
Closest name: Celery (#b4c04c)Relative luminance 0.4098

Colors that go with #b4b031

Charcoal, Cornflower 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 →

#3136b4

#b46e31 · #77b431

#31b4b0 · #b031b4

Split-complementary

Open in tool →

#3177b4 · #6e31b4

#31b46e · #3136b4 · #b43177

Contrast

#b4b031 as textRatioAAAA largeAAAFix
Aaon white
2.28:1failfailfail
  • AA: use #7c7922 as the text (4.55:1)
  • AAA: use #5c5a19 as the text (7.16:1)
  • AA: or shift the background to #404040 (4.54:1)
  • AAA: or shift the background to #212121 (7.05:1)
Aaon black
9.2:1passpasspassPasses 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 #b4b031 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

#b4b031 reads as warm. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b4b031
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 #b4b031 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b4b031-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