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
#782bcargb(120, 43, 202)hsl(269, 65%, 48%)oklch(0.492 0.225 299.8)Olive Green, Deep Sky Blue and Medium Slate Blue 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 Green sits directly opposite #782bca on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Deep Sky Blue is paired with #782bca in 3 real palettes, including Kraken's brand system and Render's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Medium Slate Blue is paired with #782bca in 3 real palettes, including ClickUp's brand system and Stripe's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Royal Blue is #782bca's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Taupe is paired with #782bca in 3 real palettes, including Superhuman's brand system and Datadog's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Teal completes a triad with #782bca — 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 #782bca: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Charcoal is the text near-black for #782bca: softer than #000 and cool enough to feel like part of the same palette.
| #782bca as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.01:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 3:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #782bca 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.
#782bca 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 #782bca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/782bca-b49cc4-cbcb62-2c1f2d-e9e9f1?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