#003dbb
a dark, electric blue · cool · closest name: slateblue
RGB
0, 61, 187
HSL
220°, 100%, 37%
CMYK
100, 67, 0, 27
Luminance
0.0693
Every format
| HEX | #003dbb |
| RGB | rgb(0, 61, 187) |
| HSL | hsl(220, 100%, 37%) |
| CMYK | cmyk(100%, 67%, 0%, 27%) |
| LAB | lab(31.6 35.6 -69.9) |
| LCH | lch(31.6 78.4 297.0) |
| OKLCH | oklch(0.424 0.204 262.5) |
Copy-ready code
/* CSS */
color: #003dbb;
background-color: #003dbb;
/* Tailwind (arbitrary) */
class="text-[#003dbb] bg-[#003dbb]"
/* SCSS */
$brand: #003dbb;
/* SwiftUI */
Color(red: 0.000, green: 0.239, blue: 0.733)
/* Android */
Color.parseColor("#003dbb")Accessibility — WCAG contrast
Aa
#003dbb on white: 8.80:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#003dbb on black: 2.39:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red0.0%
Green23.9%
Blue73.3%
CMYK percentages
Cyan100.0%
Magenta67.4%
Yellow0.0%
Key (black)26.7%
Color previews
#003dbb text on a black background
contrast 2.39:1
Card sample
#003dbb text on a white background
contrast 8.80:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #003dbb;
Background color
Panel with #003dbb background
background-color: #003dbb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #003dbb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(0, 61, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(0, 61, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #003dbb; background: linear-gradient(135deg, #003dbb, #4000BB);