Color
#c666f0
#c666f0rgb(198, 102, 240)hsl(282, 82%, 67%)oklch(0.678 0.211 314.3)Colors that go with #c666f0
Medium Sea Green, Medium Slate Blue and Light Sea Green 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.
Medium Sea Green #3cb371
complementaryMedium Sea Green sits directly opposite #c666f0 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Medium Slate Blue #7b68ee
shippedMedium Slate Blue shows up next to #c666f0 in 3 real palettes, including Obsidian's brand system and monday.com's brand system, as the supporting colour.
Light Sea Green #20b2aa
triadicshippedLight Sea Green completes a triad with #c666f0 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Dark Goldenrod #b8860b
split-complementDark Goldenrod is a split-complement of #c666f0: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Charcoal #36454f
neutralCharcoal is the text near-black for #c666f0: softer than #000 and cool enough to feel like part of the same palette.
Taupe #483c32
shippedTaupe is paired with #c666f0 in two real palettes: Loom's brand system and Obsidian's brand system, as that palette's text colour.
Peru #cd853f
triadicPeru completes a triad with #c666f0 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Amber #ffbf00
shippedAmber is paired with #c666f0 in Mastodon hosted on mastodon.social's brand system, as the accent.
Real palettes that use #c666f0
Tints & shades
Harmonies
Contrast
| #c666f0 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.2:1 | fail | pass | fail | |
Aaon black | 6.56:1 | 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 #c666f0 as the background.
Brands using this color
Fonts for this mood
#c666f0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
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 #c666f0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/c666f0-ba9fc1-b4cb62-2d1f2b-ebe9f1?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