Color

#a666eb

#a666eb
hex#a666eb
rgbrgb(166, 102, 235)
hslhsl(269, 77%, 66%)
oklchoklch(0.64 0.196 303.5)
Closest name: Orion Nebula (#a55af4)Relative luminance 0.2361

Tints & shades

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

Harmonies

Complementary

Open in tool →

#abeb66

#6668eb · #e966eb

#eba666 · #66eba6

Split-complementary

Open in tool →

#ebe966 · #68eb66

#eb6668 · #abeb66 · #66ebe9

Contrast

#a666eb as textRatioAAAA largeAAAFix
Aaon white
3.67:1failpassfail
  • AA: use #994fe8 as the text (4.53:1)
  • AAA: use #771cd9 as the text (7.11:1)
  • AA: or shift the background to #1c1c1c (4.64:1)
Aaon black
5.72:1passpassfail
  • AAA: use #b37cee as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a666eb 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

#a666eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a666eb
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 #a666eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a666eb-b49cc4-cbcb62-2c1f2d-e9e9f1?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