Color
#a66cb2
#a66cb2rgb(166, 108, 178)hsl(290, 31%, 56%)oklch(0.618 0.121 320.6)Colors that go with #a66cb2
Charcoal, Olive Drab and Copper 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.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #a66cb2: softer than #000 and cool enough to feel like part of the same palette.
Olive Drab #6b8e23
complementaryOlive Drab sits directly opposite #a66cb2 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Copper #b87333
triadicshippedCopper completes a triad with #a66cb2 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Cadet Blue #5f9ea0
split-complementCadet Blue is a split-complement of #a66cb2: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Olive Green #808000
split-complementOlive Green is a split-complement of #a66cb2: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Blue Violet #8a2be2
shippedBlue Violet is paired with #a66cb2 in two real palettes: Klarna US's brand system and ClickUp's brand system, as the accent.
Midnight Blue #191970
shippedTwo real palettes: Plaid's brand system and Marvel's brand system put Midnight Blue beside #a66cb2, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #a66cb2 in two real palettes: Loom's brand system and Dusk, as that palette's text colour.
Real palettes that use #a66cb2
Tints & shades
Harmonies
Contrast
| #a66cb2 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.88:1 | fail | pass | fail | |
Aaon black | 5.41:1 | pass | pass | fail |
|
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a66cb2 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
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.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #a66cb2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/a66cb2-bf9fc1-a6cb62-2d1f29-ece9f1?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md