Color

#b366eb

#b366eb
hex#b366eb
rgbrgb(179, 102, 235)
hslhsl(275, 77%, 66%)
oklchoklch(0.654 0.199 308.6)
Closest name: Lavender (#b56edc)Relative luminance 0.2508

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#9deb66

#7166eb · #eb66e0

#ebb366 · #66ebb3

Split-complementary

Open in tool →

#e0eb66 · #66eb71

#eb7166 · #9deb66 · #66e0eb

Contrast

#b366eb as textRatioAAAA largeAAAFix
Aaon white
3.49:1failpassfail
  • AA: use #a446e7 as the text (4.56:1)
  • AAA: use #811acb as the text (7.13:1)
  • AA: or shift the background to #212121 (4.61:1)
Aaon black
6.02:1passpassfail
  • AAA: use #bc78ed as the text (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b366eb 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

#b366eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b366eb
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #b366eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b366eb-b89cc4-c0cb62-2d1f2d-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