Color
#c21fef
#c21fefrgb(194, 31, 239)hsl(287, 87%, 53%)oklch(0.61 0.283 316.8)Colors that go with #c21fef
Olive Drab, Charcoal and Dark Cyan 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.
Olive Drab #6b8e23
complementaryOlive Drab sits directly opposite #c21fef on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #c21fef: softer than #000 and cool enough to feel like part of the same palette.
Dark Cyan #008b8b
triadicshippedDark Cyan completes a triad with #c21fef — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Olive Green #808000
split-complementOlive Green is a split-complement of #c21fef: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Sea Green #2e8b57
split-complementSea Green is a split-complement of #c21fef: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Medium Slate Blue #7b68ee
analogousshippedMedium Slate Blue is #c21fef's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Denim #1560bd
shippedDesigners have shipped Denim with #c21fef: two real palettes: Hasbro's brand system and Peacock, as the supporting colour.
Copper #b87333
triadicCopper completes a triad with #c21fef — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Real palettes that use #c21fef
Tints & shades
Harmonies
Contrast
| #c21fef as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.43:1 | fail | pass | fail | |
Aaon black | 4.74:1 | 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 #c21fef 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
#c21fef 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 #c21fef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/c21fef-bd9fc1-abcb62-2d1f2a-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