Color

#a66cd5

#a66cd5
hex#a66cd5
rgbrgb(166, 108, 213)
hslhsl(273, 56%, 63%)
oklchoklch(0.636 0.161 308)
Closest name: Lavender (#b56edc)Relative luminance 0.2364

Colors that go with #a66cd5

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 →

#9bd56c

#716cd5 · #d56cd0

#d5a66c · #6cd5a6

Split-complementary

Open in tool →

#d0d56c · #6cd571

#d5716c · #9bd56c · #6cd0d5

Contrast

#a66cd5 as textRatioAAAA largeAAAFix
Aaon white
3.67:1failpassfail
  • AA: use #9754cf as the text (4.68:1)
  • AAA: use #7932b3 as the text (7.19:1)
  • AA: or shift the background to #1c1c1c (4.65:1)
Aaon black
5.73:1passpassfail

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a66cd5 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

#a66cd5 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a66cd5
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 #a66cd5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a66cd5-b79cc4-c4cb62-2d1f2d-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