Gallery
Open in tool →Near-monochrome with one burnt-orange highlight — an art director's default because it never competes with the work.
Color
#10181e
#10181e
hex
#10181ergb
rgb(16, 24, 30)hsl
hsl(206, 30%, 9%)oklch
oklch(0.204 0.017 241)Closest name: Black Stallion (#0e191c)Relative luminance 0.0086
Tints & shades
Harmonies
Contrast
| #10181e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 17.93:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.17:1 | 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 #10181e as the background.
Brands using this color
- Chasetext · #101820 · Δ0.411
- Vimeotext · #141a20 · Δ1.09
- Monzotext · #091723 · Δ1.537
- Next.jstext · #171717 · Δ1.694
- JetBrainstext · #19191c · Δ1.723
- Airtabletext · #161616 · Δ1.734
- CircleCItext · #161616 · Δ1.734
- Netlifytext · #181a1c · Δ1.736
- GitHubprimary · #181717 · Δ1.82
- Splinetext · #191a1d · Δ1.853
- Perplexitytext · #091717 · Δ1.866
- MongoDBtext · #061621 · Δ1.878
- Retooltext · #151515 · Δ1.881
- Notionprimary · #191919 · Δ1.941
Palettes built around it
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.
Indigo SaaS
Open in tool →The dependable indigo-and-emerald B2B pairing: indigo for primary actions, emerald reserved for success states.
Estate
Open in tool →Bronze on charcoal signals premium listings; the silver accent handles secondary detail without adding color.
Cobalt Pop
Open in tool →One deep cobalt and one hot pink on white — a two-accent system for launches and campaign pages that need punch.
Fonts for this mood
#10181e reads as cool, muted, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #10181e
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 #10181e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/10181e-9caec4-df4e56-1f212d-e9f1f1?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