Color

#b91bbb

#b91bbb
hex#b91bbb
rgbrgb(185, 27, 187)
hslhsl(299, 75%, 42%)
oklchoklch(0.56 0.244 327.6)
Closest name: Amora Purple (#bb22aa)Relative luminance 0.1469

Colors that go with #b91bbb

Forest Green, Charcoal and Denim 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 →

#1dbb1b

#681bbb · #bb1b6e

#bbb91b · #1bbbb9

Split-complementary

Open in tool →

#6ebb1b · #1bbb68

#bb681b · #1dbb1b · #1b6ebb

Contrast

#b91bbb as textRatioAAAA largeAAAFix
Aaon white
5.33:1passpassfail
  • AAA: use #9a169c as the text (7.07:1)
Aaon black
3.94:1failpassfail
  • AA: use #ca1dcd as the text (4.57:1)
  • AAA: use #e65ee8 as the text (7.13:1)
  • AA: or shift the background to #ededed (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b91bbb as the background.

Brands using this color

Fonts for this mood

#b91bbb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b91bbb
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 #b91bbb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b91bbb-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