#171921
a deep, soft blue · warm · closest name: black
RGB
23, 25, 33
HSL
228°, 18%, 11%
CMYK
30, 24, 0, 87
Luminance
0.0099
Every format
| HEX | #171921 |
| RGB | rgb(23, 25, 33) |
| HSL | hsl(228, 18%, 11%) |
| CMYK | cmyk(30%, 24%, 0%, 87%) |
| LAB | lab(8.9 1.4 -5.8) |
| LCH | lch(8.9 6.0 283.5) |
| OKLCH | oklch(0.215 0.016 274.0) |
Copy-ready code
/* CSS */
color: #171921;
background-color: #171921;
/* Tailwind (arbitrary) */
class="text-[#171921] bg-[#171921]"
/* SCSS */
$brand: #171921;
/* SwiftUI */
Color(red: 0.090, green: 0.098, blue: 0.129)
/* Android */
Color.parseColor("#171921")Accessibility — WCAG contrast
Aa
#171921 on white: 17.54:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#171921 on black: 1.20:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red9.0%
Green9.8%
Blue12.9%
CMYK percentages
Cyan30.3%
Magenta24.2%
Yellow0.0%
Key (black)87.1%
Color previews
#171921 text on a black background
contrast 1.20:1
Card sample
#171921 text on a white background
contrast 17.54:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #171921;
Background color
Panel with #171921 background
background-color: #171921;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #171921;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(23, 25, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(23, 25, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #171921; background: linear-gradient(135deg, #171921, #1C1721);