#003688
a dark, electric blue · cool · closest name: midnightblue
RGB
0, 54, 136
HSL
216°, 100%, 27%
CMYK
100, 60, 0, 47
Luminance
0.0442
Every format
| HEX | #003688 |
| RGB | rgb(0, 54, 136) |
| HSL | hsl(216, 100%, 27%) |
| CMYK | cmyk(100%, 60%, 0%, 47%) |
| LAB | lab(25.0 19.7 -49.9) |
| LCH | lch(25.0 53.6 291.6) |
| OKLCH | oklch(0.360 0.147 260.0) |
Copy-ready code
/* CSS */
color: #003688;
background-color: #003688;
/* Tailwind (arbitrary) */
class="text-[#003688] bg-[#003688]"
/* SCSS */
$brand: #003688;
/* SwiftUI */
Color(red: 0.000, green: 0.212, blue: 0.533)
/* Android */
Color.parseColor("#003688")Accessibility — WCAG contrast
Aa
#003688 on white: 11.15:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#003688 on black: 1.88:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red0.0%
Green21.2%
Blue53.3%
CMYK percentages
Cyan100.0%
Magenta60.3%
Yellow0.0%
Key (black)46.7%
Color previews
#003688 text on a black background
contrast 1.88:1
Card sample
#003688 text on a white background
contrast 11.15:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #003688;
Background color
Panel with #003688 background
background-color: #003688;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #003688;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(0, 54, 136, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(0, 54, 136, 0.45);
Border & gradient
Gradient panel
border: 3px solid #003688; background: linear-gradient(135deg, #003688, #250088);