Newsprint
Open in tool →Ink-black on warm paper with a single red — the broadsheet hierarchy that lets typography lead.
Color
#21171drgb(33, 23, 29)hsl(324, 18%, 11%)oklch(0.22 0.019 342.1)Charcoal, Amber and 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.
Charcoal is the text near-black that reads cleanly against #21171d without the hard edge of pure #000.
Amber is paired with #21171d in 18 real palettes, including Warner Bros.'s brand system and Trailhead, as the accent.
24 real palettes, including Signal's brand system and Warp's brand system put Blue beside #21171d, as the supporting colour.
Blue Violet is paired with #21171d in 10 real palettes, including Yahoo's brand system and ClickUp's brand system, as the supporting colour.
5 real palettes, including Graphite Mono and Estate put Blush Pink beside #21171d, as the accent.
5 real palettes, including Woodsmoke and State Farm's brand system put Brown beside #21171d, as the accent.
4 real palettes, including Qatar Airways's brand system and Mailchimp's brand system put Burgundy beside #21171d, as the accent.
Burlywood is paired with #21171d in 6 real palettes, including Coffee Bar and Kiln, as the accent.
| #21171d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 17.43:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.2:1 | 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 #21171d as the background.
Ink-black on warm paper with a single red — the broadsheet hierarchy that lets typography lead.
Two greys and one ink-blue link color: the palette of a well-set book page.
A sober docs palette: one blue for interactive, one green for success, zinc greys for everything else.
A greyscale system with a single amber — the accent does all the work, so allow one per screen.
Orange is the rarest SaaS primary, which is exactly why it stands out on a pricing page; cyan keeps it from feeling like a hardware store.
A pure greyscale with a single electric blue — the portfolio palette that makes work look considered.
Blackberry and bark with a wheat highlight on a plum-black surface — late-autumn, quiet, slightly gothic.
Stone greys with a faint warmth — Tailwind's stone scale used as a whole palette: interfaces that want to disappear.
#21171d reads as warm, muted, dark. 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 #21171d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/21171d-c19faf-6bcb62-2d1f22-f0e9f1?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