#171c21
a deep, soft blue · cool · closest name: black
RGB
23, 28, 33
HSL
210°, 18%, 11%
CMYK
30, 15, 0, 87
Luminance
0.0112
Every format
| HEX | #171c21 |
| RGB | rgb(23, 28, 33) |
| HSL | hsl(210, 18%, 11%) |
| CMYK | cmyk(30%, 15%, 0%, 87%) |
| LAB | lab(10.0 -0.8 -4.2) |
| LCH | lch(10.0 4.3 258.7) |
| OKLCH | oklch(0.224 0.012 248.4) |
Copy-ready code
/* CSS */
color: #171c21;
background-color: #171c21;
/* Tailwind (arbitrary) */
class="text-[#171c21] bg-[#171c21]"
/* SCSS */
$brand: #171c21;
/* SwiftUI */
Color(red: 0.090, green: 0.110, blue: 0.129)
/* Android */
Color.parseColor("#171c21")Accessibility — WCAG contrast
Aa
#171c21 on white: 17.15:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#171c21 on black: 1.22:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red9.0%
Green11.0%
Blue12.9%
CMYK percentages
Cyan30.3%
Magenta15.2%
Yellow0.0%
Key (black)87.1%
Color previews
#171c21 text on a black background
contrast 1.22:1
Card sample
#171c21 text on a white background
contrast 17.15:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #171c21;
Background color
Panel with #171c21 background
background-color: #171c21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #171c21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(23, 28, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(23, 28, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #171c21; background: linear-gradient(135deg, #171c21, #191721);