Color

#a66cd0

#a66cd0
hex#a66cd0
rgbrgb(166, 108, 208)
hslhsl(275, 52%, 62%)
oklchoklch(0.633 0.155 309.4)
Closest name: Amethyst (#9966cc)Relative luminance 0.2339

Colors that go with #a66cd0

Olive Drab, Charcoal and Light Sky Blue 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 →

#96d06c

#746cd0 · #d06cc8

#d0a66c · #6cd0a6

Split-complementary

Open in tool →

#c8d06c · #6cd074

#d0746c · #96d06c · #6cc8d0

Contrast

#a66cd0 as textRatioAAAA largeAAAFix
Aaon white
3.7:1failpassfail
  • AA: use #9b58ca as the text (4.52:1)
  • AAA: use #7a36ab as the text (7.14:1)
  • AA: or shift the background to #1c1c1c (4.61:1)
Aaon black
5.68:1passpassfail
  • AAA: use #b483d8 as the text (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a66cd0 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

#a66cd0 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a66cd0
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 #a66cd0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a66cd0-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