Color

#b151b3

#b151b3
hex#b151b3
rgbrgb(177, 81, 179)
hslhsl(299, 39%, 51%)
oklchoklch(0.592 0.174 326.7)
Closest name: Fuchsia Pheromone (#9f4cb7)Relative luminance 0.1849

Colors that go with #b151b3

Sea Green, Dark Cyan and Charcoal 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 →

#53b351

#8051b3 · #b35184

#b3b151 · #51b3b1

Split-complementary

Open in tool →

#84b351 · #51b380

#b38051 · #53b351 · #5184b3

Contrast

#b151b3 as textRatioAAAA largeAAAFix
Aaon white
4.47:1failpassfail
  • AA: use #b04eb1 as the text (4.59:1)
  • AAA: use #853b87 as the text (7.06:1)
  • AA: or shift the background to #050505 (4.56:1)
Aaon black
4.7:1passpassfail
  • AAA: use #c47cc5 as the text (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b151b3 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

#b151b3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b151b3
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 #b151b3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b151b3-c19fbd-96cb62-2d1f27-ede9f1?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