Color

#bb81ef

#bb81ef
hex#bb81ef
rgbrgb(187, 129, 239)
hslhsl(272, 77%, 72%)
oklchoklch(0.705 0.165 307)
Closest name: Illicit Purple (#bf77f6)Relative luminance 0.325

Colors that go with #bb81ef

Medium Sea Green, Charcoal and Light Sea Green 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 →

#b4ef81

#8481ef · #ef81eb

#efbb81 · #81efbb

Split-complementary

Open in tool →

#ebef81 · #81ef84

#ef8481 · #b4ef81 · #81ebef

Contrast

#bb81ef as textRatioAAAA largeAAAFix
Aaon white
2.8:1failfailfail
  • AA: use #9e4ae8 as the text (4.57:1)
  • AAA: use #7b1bd0 as the text (7.22:1)
  • AA: or shift the background to #333333 (4.51:1)
  • AAA: or shift the background to #0a0a0a (7.07:1)
Aaon black
7.5:1passpasspassPasses 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 #bb81ef 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

#bb81ef reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bb81ef
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 #bb81ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bb81ef-b69cc4-c5cb62-2d1f2d-eae9f1?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