Newsprint
Open in tool →Ink-black on warm paper with a single red — the broadsheet hierarchy that lets typography lead.
Color
#21171c
#21171c
hex
#21171crgb
rgb(33, 23, 28)hsl
hsl(330, 18%, 11%)oklch
oklch(0.219 0.018 347.2)Closest name: Bats Cloak (#1f1518)Relative luminance 0.0102
Tints & shades
Harmonies
Contrast
| #21171c as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 17.44:1 | 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 #21171c as the background.
Brands using this color
Palettes built around it
Ink & Paper
Open in tool →Two greys and one ink-blue link color: the palette of a well-set book page.
Console Light
Open in tool →A sober docs palette: one blue for interactive, one green for success, zinc greys for everything else.
Graphite
Open in tool →A greyscale system with a single amber — the accent does all the work, so allow one per screen.
Launch Orange
Open in tool →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.
Learning App
Open in tool →Green, blue and orange at full saturation: the gamified-learning look, where every color is a reward.
Studio Grey
Open in tool →A pure greyscale with a single electric blue — the portfolio palette that makes work look considered.
Fonts for this mood
#21171c reads as warm, muted, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #21171c
live endpointPoint any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #21171c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/21171c-c49cab-62cb64-2d1f20-f1e9f1?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