#003cbb
a dark, electric blue · cool · closest name: slateblue
RGB
0, 60, 187
HSL
221°, 100%, 37%
CMYK
100, 68, 0, 27
Luminance
0.0682
Every format
| HEX | #003cbb |
| RGB | rgb(0, 60, 187) |
| HSL | hsl(221, 100%, 37%) |
| CMYK | cmyk(100%, 68%, 0%, 27%) |
| LAB | lab(31.4 36.3 -70.3) |
| LCH | lch(31.4 79.1 297.3) |
| OKLCH | oklch(0.422 0.206 262.6) |
Copy-ready code
/* CSS */
color: #003cbb;
background-color: #003cbb;
/* Tailwind (arbitrary) */
class="text-[#003cbb] bg-[#003cbb]"
/* SCSS */
$brand: #003cbb;
/* SwiftUI */
Color(red: 0.000, green: 0.235, blue: 0.733)
/* Android */
Color.parseColor("#003cbb")Accessibility — WCAG contrast
Aa
#003cbb on white: 8.88:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#003cbb on black: 2.36:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red0.0%
Green23.5%
Blue73.3%
CMYK percentages
Cyan100.0%
Magenta67.9%
Yellow0.0%
Key (black)26.7%
Color previews
#003cbb text on a black background
contrast 2.36:1
Card sample
#003cbb text on a white background
contrast 8.88:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #003cbb;
Background color
Panel with #003cbb background
background-color: #003cbb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #003cbb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(0, 60, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(0, 60, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #003cbb; background: linear-gradient(135deg, #003cbb, #4100BB);