#043dbb
a dark, electric blue · cool · closest name: slateblue
RGB
4, 61, 187
HSL
221°, 96%, 38%
CMYK
98, 67, 0, 27
Luminance
0.0695
Every format
| HEX | #043dbb |
| RGB | rgb(4, 61, 187) |
| HSL | hsl(221, 96%, 38%) |
| CMYK | cmyk(98%, 67%, 0%, 27%) |
| LAB | lab(31.7 35.8 -69.8) |
| LCH | lch(31.7 78.4 297.1) |
| OKLCH | oklch(0.425 0.204 262.9) |
Copy-ready code
/* CSS */
color: #043dbb;
background-color: #043dbb;
/* Tailwind (arbitrary) */
class="text-[#043dbb] bg-[#043dbb]"
/* SCSS */
$brand: #043dbb;
/* SwiftUI */
Color(red: 0.016, green: 0.239, blue: 0.733)
/* Android */
Color.parseColor("#043dbb")Accessibility — WCAG contrast
Aa
#043dbb on white: 8.79:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#043dbb on black: 2.39:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green23.9%
Blue73.3%
CMYK percentages
Cyan97.9%
Magenta67.4%
Yellow0.0%
Key (black)26.7%
Color previews
#043dbb text on a black background
contrast 2.39:1
Card sample
#043dbb text on a white background
contrast 8.79:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #043dbb;
Background color
Panel with #043dbb background
background-color: #043dbb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #043dbb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 61, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 61, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #043dbb; background: linear-gradient(135deg, #043dbb, #4504BB);