Arcade
Open in tool →Hot pink, cyan and acid yellow on near-black — cabinet-glow neon; the black surface is what makes the colours light up.
Color
#100717rgb(16, 7, 23)hsl(274, 53%, 6%)oklch(0.152 0.036 309)Charcoal, Dark Olive Green and Sienna 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 is the text near-black for #100717: softer than #000 and cool enough to feel like part of the same palette.
Dark Olive Green sits directly opposite #100717 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Sienna completes a triad with #100717 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Slate Blue is #100717's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Teal is a split-complement of #100717: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Amber is paired with #100717 in 8 real palettes, including Lemon Squeezy's brand system and NBA's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Blue is paired with #100717 in 11 real palettes, including Pfizer's brand system and Pepsi's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Blue Violet is paired with #100717 in 8 real palettes, including Gemstone and Twitch's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
| #100717 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 19.72:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.06:1 | 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 #100717 as the background.
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Hot pink, cyan and acid yellow on near-black — cabinet-glow neon; the black surface is what makes the colours light up.
Orange, magenta and yellow neon on aubergine-black — the street-sign palette for food, nightlife and events.
Emerald, amethyst and ruby on velvet-black — the jewel-tone trio; the surface must be dark or the stones go plastic.
#100717 reads as cool, dark, luxury. 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 #100717 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/100717-b79cc4-c2cb62-2d1f2d-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