Crayon Box
Open in tool →Red, teal and yellow at crayon saturation — joyful, but on white with black type so it stays readable for grown-ups.
Color
#281f27
#281f27
hex
#281f27rgb
rgb(40, 31, 39)hsl
hsl(307, 13%, 14%)oklch
oklch(0.253 0.02 329.8)Closest name: Black Velvet (#222233)Relative luminance 0.0158
Colors that go with #281f27
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 #281f27 without the hard edge of pure #000.
Amber #ffbf00
shippedAmber is paired with #281f27 in 18 real palettes, including Wikipedia's brand system and Google's brand system, as the accent.
Blue #0000ff
shipped23 real palettes, including Rolex's brand system and Bumble's brand system put Blue beside #281f27, as the accent.
Blue Violet #8a2be2
shippedBlue Violet is paired with #281f27 in 10 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 Blush put Blush Pink beside #281f27, as the accent.
Brown #a52a2a
shipped5 real palettes, including Woodsmoke and Typewriter put Brown beside #281f27, as the accent.
Burlywood #deb887
shippedBurlywood is paired with #281f27 in 6 real palettes, including Kiln and Chalkboard, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #281f27: 10 real palettes, including SoFi's brand system and Dusk, as the supporting colour.
Real palettes that use #281f27
Tints & shades
Harmonies
Contrast
| #281f27 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 15.96:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.32:1 | 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 #281f27 as the background.
Brands using this color
- Allbirdsprimary · #241c24 · Δ1.392
- Qatar Airwaysprimary · #1f212b · Δ1.792
- Qatar Airwaystext · #1f212b · Δ1.792
- Appleprimary · #221e1f · Δ1.981
- Acertext · #222222 · Δ1.993
- Airbnbtext · #222222 · Δ1.993
- AliExpressprimary · #222222 · Δ1.993
- AliExpresstext · #222222 · Δ1.993
- Nikonprimary · #222222 · Δ1.993
- Nikontext · #222222 · Δ1.993
Palettes built around it
Graphite Mono
Open in tool →Five greys, no hue — the true monochrome; the accent is a lighter grey, so hierarchy comes from weight and size alone.
Fonts for this mood
#281f27 reads as warm, muted, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #281f27
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 #281f27 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/281f27-c19fb9-89cb62-2d1f26-eee9f1?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