#28343f
a deep, soft blue · cool · closest name: darkslategray
RGB
40, 52, 63
HSL
209°, 22%, 20%
CMYK
37, 18, 0, 75
Luminance
0.0327
Every format
| HEX | #28343f |
| RGB | rgb(40, 52, 63) |
| HSL | hsl(209, 22%, 20%) |
| CMYK | cmyk(37%, 18%, 0%, 75%) |
| LAB | lab(21.1 -1.8 -8.5) |
| LCH | lch(21.1 8.7 258.0) |
| OKLCH | oklch(0.319 0.025 246.4) |
Copy-ready code
/* CSS */
color: #28343f;
background-color: #28343f;
/* Tailwind (arbitrary) */
class="text-[#28343f] bg-[#28343f]"
/* SCSS */
$brand: #28343f;
/* SwiftUI */
Color(red: 0.157, green: 0.204, blue: 0.247)
/* Android */
Color.parseColor("#28343f")Accessibility — WCAG contrast
Aa
#28343f on white: 12.70:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#28343f on black: 1.65:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green20.4%
Blue24.7%
CMYK percentages
Cyan36.5%
Magenta17.5%
Yellow0.0%
Key (black)75.3%
Color previews
#28343f text on a black background
contrast 1.65:1
Card sample
#28343f text on a white background
contrast 12.70:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #28343f;
Background color
Panel with #28343f background
background-color: #28343f;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #28343f;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 52, 63, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 52, 63, 0.45);
Border & gradient
Gradient panel
border: 3px solid #28343f; background: linear-gradient(135deg, #28343f, #2B283F);