Color

#b566ff

#b566ff
hex#b566ff
rgbrgb(181, 102, 255)
hslhsl(271, 100%, 70%)
oklchoklch(0.668 0.222 304.9)
Closest name: Orion Nebula (#a55af4)Relative luminance 0.2655

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b0ff66

#6966ff · #ff66fc

#ffb566 · #66ffb5

Split-complementary

Open in tool →

#fcff66 · #66ff69

#ff6966 · #b0ff66 · #66fcff

Contrast

#b566ff as textRatioAAAA largeAAAFix
Aaon white
3.33:1failpassfail
  • AA: use #a13dff as the text (4.54:1)
  • AAA: use #7700e6 as the text (7.17:1)
  • AA: or shift the background to #262626 (4.55:1)
Aaon black
6.31:1passpassfail
  • AAA: use #bc75ff as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b566ff 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

#b566ff reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b566ff
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 #b566ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b566ff-b59cc4-c7cb62-2c1f2d-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