#0000bb
a dark, electric blue · warm · closest name: navy
RGB
0, 0, 187
HSL
240°, 100%, 37%
CMYK
100, 100, 0, 27
Luminance
0.0359
Every format
| HEX | #0000bb |
| RGB | rgb(0, 0, 187) |
| HSL | hsl(240, 100%, 37%) |
| CMYK | cmyk(100%, 100%, 0%, 27%) |
| LAB | lab(22.3 62.7 -85.4) |
| LCH | lch(22.3 106.0 306.3) |
| OKLCH | oklch(0.358 0.248 264.1) |
Copy-ready code
/* CSS */
color: #0000bb;
background-color: #0000bb;
/* Tailwind (arbitrary) */
class="text-[#0000bb] bg-[#0000bb]"
/* SCSS */
$brand: #0000bb;
/* SwiftUI */
Color(red: 0.000, green: 0.000, blue: 0.733)
/* Android */
Color.parseColor("#0000bb")Accessibility — WCAG contrast
Aa
#0000bb on white: 12.23:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#0000bb on black: 1.72:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red0.0%
Green0.0%
Blue73.3%
CMYK percentages
Cyan100.0%
Magenta100.0%
Yellow0.0%
Key (black)26.7%
Color previews
#0000bb text on a black background
contrast 1.72:1
Card sample
#0000bb text on a white background
contrast 12.23:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #0000bb;
Background color
Panel with #0000bb background
background-color: #0000bb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #0000bb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(0, 0, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(0, 0, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #0000bb; background: linear-gradient(135deg, #0000bb, #7D00BB);