Color

#a66dd0

#a66dd0
hex#a66dd0
rgbrgb(166, 109, 208)
hslhsl(275, 51%, 62%)
oklchoklch(0.635 0.154 309.2)
Closest name: Amethyst (#9966cc)Relative luminance 0.236

Colors that go with #a66dd0

Olive Drab, Amber and Charcoal 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 →

#96d06d

#756dd0 · #d06dc7

#d0a66d · #6dd0a6

Split-complementary

Open in tool →

#c7d06d · #6dd075

#d0756d · #96d06d · #6dc7d0

Contrast

#a66dd0 as textRatioAAAA largeAAAFix
Aaon white
3.67:1failpassfail
  • AA: use #9b59c9 as the text (4.5:1)
  • AAA: use #7a37a9 as the text (7.13:1)
  • AA: or shift the background to #1c1c1c (4.64:1)
Aaon black
5.72:1passpassfail
  • AAA: use #b484d7 as the text (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a66dd0 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

#a66dd0 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a66dd0
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 #a66dd0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a66dd0-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