#003fdf
a dark, electric blue · cool · closest name: navy
RGB
0, 63, 223
HSL
223°, 100%, 44%
CMYK
100, 72, 0, 13
Luminance
0.0888
Every format
| HEX | #003fdf |
| RGB | rgb(0, 63, 223) |
| HSL | hsl(223, 100%, 44%) |
| CMYK | cmyk(100%, 72%, 0%, 13%) |
| LAB | lab(35.8 47.7 -84.0) |
| LCH | lch(35.8 96.6 299.6) |
| OKLCH | oklch(0.465 0.245 263.4) |
Copy-ready code
/* CSS */
color: #003fdf;
background-color: #003fdf;
/* Tailwind (arbitrary) */
class="text-[#003fdf] bg-[#003fdf]"
/* SCSS */
$brand: #003fdf;
/* SwiftUI */
Color(red: 0.000, green: 0.247, blue: 0.875)
/* Android */
Color.parseColor("#003fdf")Accessibility — WCAG contrast
Aa
#003fdf on white: 7.56:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#003fdf on black: 2.78:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red0.0%
Green24.7%
Blue87.5%
CMYK percentages
Cyan100.0%
Magenta71.7%
Yellow0.0%
Key (black)12.5%
Color previews
#003fdf text on a black background
contrast 2.78:1
Card sample
#003fdf text on a white background
contrast 7.56:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #003fdf;
Background color
Panel with #003fdf background
background-color: #003fdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #003fdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(0, 63, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(0, 63, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #003fdf; background: linear-gradient(135deg, #003fdf, #5500DF);