Color

#b666eb

#b666eb
hex#b666eb
rgbrgb(182, 102, 235)
hslhsl(276, 77%, 66%)
oklchoklch(0.657 0.2 309.7)
Closest name: Lavender (#b56edc)Relative luminance 0.2545

Colors that go with #b666eb

Olive Drab, Charcoal and Medium 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 →

#9beb66

#7366eb · #eb66de

#ebb666 · #66ebb6

Split-complementary

Open in tool →

#deeb66 · #66eb73

#eb7366 · #9beb66 · #66deeb

Contrast

#b666eb as textRatioAAAA largeAAAFix
Aaon white
3.45:1failpassfail
  • AA: use #a441e6 as the text (4.69:1)
  • AAA: use #841acb as the text (7.02:1)
  • AA: or shift the background to #242424 (4.5:1)
Aaon black
6.09:1passpassfail
  • AAA: use #be78ed as the text (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b666eb 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

#b666eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b666eb
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 #b666eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b666eb-b99cc4-bfcb62-2d1f2d-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