Dusk
Open in tool →Slate blue with a copper accent — calm, professional, slightly editorial; suits consultancies and journals.
Color
#212431
#212431
hex
#212431rgb
rgb(33, 36, 49)hsl
hsl(229, 20%, 16%)oklch
oklch(0.263 0.025 274.5)Closest name: Black Velvet (#222233)Relative luminance 0.0181
Colors that go with #212431
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 #36454f
neutralshippedCharcoal is the text near-black that reads cleanly against #212431 without the hard edge of pure #000.
Amber #ffbf00
shippedAmber is paired with #212431 in 18 real palettes, including Beach Hut and Wikipedia's brand system, as the supporting colour.
Blue #0000ff
shipped23 real palettes, including Readymag's brand system and Monzo's brand system put Blue beside #212431, as the supporting colour.
Blue Violet #8a2be2
shippedBlue Violet is paired with #212431 in 9 real palettes, including ClickUp's brand system and Yahoo's brand system, as the lead colour.
Blush Pink #e8b4b8
shipped6 real palettes, including Graphite Mono and Rain Garden put Blush Pink beside #212431, as the accent.
Brown #a52a2a
shipped5 real palettes, including Typewriter and Woodsmoke put Brown beside #212431, as the accent.
Burlywood #deb887
shippedBurlywood is paired with #212431 in 6 real palettes, including Coastal and Chalkboard, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #212431: 10 real palettes, including Dusk and Alpine, as the supporting colour.
Real palettes that use #212431
Tints & shades
Harmonies
Contrast
| #212431 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 15.43:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.36:1 | 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 #212431 as the background.
Brands using this color
- Nespressoprimary · #1f2533 · Δ0.505
- Subarutext · #1d252c · Δ1.332
- Qatar Airwaysprimary · #1f212b · Δ1.422
- Qatar Airwaystext · #1f212b · Δ1.422
- Volkswagenprimary · #1b2236 · Δ1.681
- 7-Elevenprimary · #212529 · Δ1.683
- 7-Eleventext · #212529 · Δ1.683
- AMDprimary · #212529 · Δ1.683
- AMDtext · #212529 · Δ1.683
- Boeingtext · #212529 · Δ1.683
- Calvin Kleinprimary · #212529 · Δ1.683
- Calvin Kleintext · #212529 · Δ1.683
- Datadogtext · #212529 · Δ1.683
- Tommy Hilfigerprimary · #212529 · Δ1.683
- Tommy Hilfigertext · #212529 · Δ1.683
- Trader Joe'sprimary · #212529 · Δ1.683
- Trader Joe'stext · #212529 · Δ1.683
- Operaaccent · #252836 · Δ1.698
- AT&Tprimary · #1d2329 · Δ1.704
- AT&Ttext · #1d2329 · Δ1.704
- Zedtext · #242529 · Δ1.73
- GitHubtext · #1f2328 · Δ1.739
- Charactersecondary · #1f2937 · Δ1.767
- dbt Labssecondary · #1e2939 · Δ1.939
Palettes built around it
Pastel Pop
Open in tool →Pastels pushed to the saturated end — pink, sky and lemon — for brands that want soft AND loud.
Tide Pool
Open in tool →Sea-green and slate with a coral — a literal tide pool: two cool tones, one warm creature.
Fonts for this mood
#212431 reads as cool, muted, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #212431
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #212431 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/212431-9c9fc4-df7e4e-231f2d-e9eef1?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