#151b21
a deep, soft blue · cool · closest name: black
RGB
21, 27, 33
HSL
210°, 22%, 11%
CMYK
36, 18, 0, 87
Luminance
0.0105
Every format
| HEX | #151b21 |
| RGB | rgb(21, 27, 33) |
| HSL | hsl(210, 22%, 11%) |
| CMYK | cmyk(36%, 18%, 0%, 87%) |
| LAB | lab(9.4 -0.9 -5.0) |
| LCH | lch(9.4 5.1 259.6) |
| OKLCH | oklch(0.219 0.015 248.5) |
Copy-ready code
/* CSS */
color: #151b21;
background-color: #151b21;
/* Tailwind (arbitrary) */
class="text-[#151b21] bg-[#151b21]"
/* SCSS */
$brand: #151b21;
/* SwiftUI */
Color(red: 0.082, green: 0.106, blue: 0.129)
/* Android */
Color.parseColor("#151b21")Accessibility — WCAG contrast
Aa
#151b21 on white: 17.35:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#151b21 on black: 1.21:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red8.2%
Green10.6%
Blue12.9%
CMYK percentages
Cyan36.4%
Magenta18.2%
Yellow0.0%
Key (black)87.1%
Color previews
#151b21 text on a black background
contrast 1.21:1
Card sample
#151b21 text on a white background
contrast 17.35:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #151b21;
Background color
Panel with #151b21 background
background-color: #151b21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #151b21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(21, 27, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(21, 27, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #151b21; background: linear-gradient(135deg, #151b21, #171521);