Color

#b91be4

#b91be4
hex#b91be4
rgbrgb(185, 27, 228)
hslhsl(287, 79%, 50%)
oklchoklch(0.588 0.274 316.9)
Closest name: Ferocious Fuchsia (#aa00cc)Relative luminance 0.167

Colors that go with #b91be4

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 →

#46e41b

#541be4 · #e41bab

#e4b91b · #1be4b9

Split-complementary

Open in tool →

#abe41b · #1be454

#e4541b · #46e41b · #1babe4

Contrast

#b91be4 as textRatioAAAA largeAAAFix
Aaon white
4.84:1passpassfail
  • AAA: use #9015b2 as the text (7.15:1)
Aaon black
4.34:1failpassfail
  • AA: use #bd28e6 as the text (4.61:1)
  • AAA: use #d26dee as the text (7.16:1)
  • AA: or shift the background to #f7f7f7 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b91be4 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

#b91be4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b91be4
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 #b91be4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b91be4-bd9fc1-abcb62-2d1f2a-ece9f1?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