Color

#b1b404

#b1b404
hex#b1b404
rgbrgb(177, 180, 4)
hslhsl(61, 96%, 36%)
oklchoklch(0.743 0.163 111)
Closest name: Citrus (#9fb70a)Relative luminance 0.42

Colors that go with #b1b404

Charcoal, Lilac and 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 →

#0704b4

#b45f04 · #59b404

#04b1b4 · #b404b1

Split-complementary

Open in tool →

#0459b4 · #5f04b4

#04b45f · #0704b4 · #b40459

Contrast

#b1b404 as textRatioAAAA largeAAAFix
Aaon white
2.23:1failfailfail
  • AA: use #767802 as the text (4.71:1)
  • AAA: use #585a02 as the text (7.3:1)
  • AA: or shift the background to #404040 (4.64:1)
  • AAA: or shift the background to #212121 (7.21:1)
Aaon black
9.4:1passpasspassPasses 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 #b1b404 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 #b1b404
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 #b1b404 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b1b404-babea2-4e92df-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