Gemstone
Open in tool →Emerald, amethyst and ruby on velvet-black — the jewel-tone trio; the surface must be dark or the stones go plastic.
Color
#841fc7rgb(132, 31, 199)hsl(276, 73%, 45%)oklch(0.495 0.234 306.1)Denim, Olive Green 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.
Designers have shipped Denim with #841fc7: 4 real palettes, including Linkedin's brand system and Peacock, as the lead colour.
Olive Green sits directly opposite #841fc7 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Charcoal is the text near-black for #841fc7: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue is #841fc7's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Teal completes a triad with #841fc7 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Sea Green is a split-complement of #841fc7: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Crimson is paired with #841fc7 in two real palettes: Gemstone and Wells Fargo's brand system, as the accent.
Designers have shipped Deep Sky Blue with #841fc7: two real palettes: Kraken's brand system and Render's brand system, as the accent.
| #841fc7 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7:1 | pass | pass | fail |
|
Aaon black | 3:1 | fail | 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 #841fc7 as the background.
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Emerald, amethyst and ruby on velvet-black — the jewel-tone trio; the surface must be dark or the stones go plastic.
#841fc7 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 #841fc7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/841fc7-b99cc4-bfcb62-2d1f2d-eae9f1?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