#284d71
a dark, vivid blue · cool · closest name: steelblue
RGB
40, 77, 113
HSL
210°, 48%, 30%
CMYK
65, 32, 0, 56
Luminance
0.0695
Every format
| HEX | #284d71 |
| RGB | rgb(40, 77, 113) |
| HSL | hsl(210, 48%, 30%) |
| CMYK | cmyk(65%, 32%, 0%, 56%) |
| LAB | lab(31.7 -1.0 -24.6) |
| LCH | lch(31.7 24.7 267.6) |
| OKLCH | oklch(0.410 0.074 249.5) |
Copy-ready code
/* CSS */
color: #284d71;
background-color: #284d71;
/* Tailwind (arbitrary) */
class="text-[#284d71] bg-[#284d71]"
/* SCSS */
$brand: #284d71;
/* SwiftUI */
Color(red: 0.157, green: 0.302, blue: 0.443)
/* Android */
Color.parseColor("#284d71")Accessibility — WCAG contrast
Aa
#284d71 on white: 8.79:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#284d71 on black: 2.39:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green30.2%
Blue44.3%
CMYK percentages
Cyan64.6%
Magenta31.9%
Yellow0.0%
Key (black)55.7%
Color previews
#284d71 text on a black background
contrast 2.39:1
Card sample
#284d71 text on a white background
contrast 8.79:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #284d71;
Background color
Panel with #284d71 background
background-color: #284d71;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #284d71;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 77, 113, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 77, 113, 0.45);
Border & gradient
Gradient panel
border: 3px solid #284d71; background: linear-gradient(135deg, #284d71, #342871);