#151721
a deep, soft blue · warm · closest name: black
RGB
21, 23, 33
HSL
230°, 22%, 11%
CMYK
36, 30, 0, 87
Luminance
0.0088
Every format
| HEX | #151721 |
| RGB | rgb(21, 23, 33) |
| HSL | hsl(230, 22%, 11%) |
| CMYK | cmyk(36%, 30%, 0%, 87%) |
| LAB | lab(8.0 2.1 -7.3) |
| LCH | lch(8.0 7.6 286.0) |
| OKLCH | oklch(0.207 0.020 275.7) |
Copy-ready code
/* CSS */
color: #151721;
background-color: #151721;
/* Tailwind (arbitrary) */
class="text-[#151721] bg-[#151721]"
/* SCSS */
$brand: #151721;
/* SwiftUI */
Color(red: 0.082, green: 0.090, blue: 0.129)
/* Android */
Color.parseColor("#151721")Accessibility — WCAG contrast
Aa
#151721 on white: 17.85:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#151721 on black: 1.18:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red8.2%
Green9.0%
Blue12.9%
CMYK percentages
Cyan36.4%
Magenta30.3%
Yellow0.0%
Key (black)87.1%
Color previews
#151721 text on a black background
contrast 1.18:1
Card sample
#151721 text on a white background
contrast 17.85:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #151721;
Background color
Panel with #151721 background
background-color: #151721;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #151721;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(21, 23, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(21, 23, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #151721; background: linear-gradient(135deg, #151721, #1B1521);