#0055bb
a dark, electric blue · cool · closest name: royalblue
RGB
0, 85, 187
HSL
213°, 100%, 37%
CMYK
100, 55, 0, 27
Luminance
0.1008
Every format
| HEX | #0055bb |
| RGB | rgb(0, 85, 187) |
| HSL | hsl(213, 100%, 37%) |
| CMYK | cmyk(100%, 55%, 0%, 27%) |
| LAB | lab(38.0 19.6 -59.5) |
| LCH | lch(38.0 62.6 288.2) |
| OKLCH | oklch(0.472 0.176 258.1) |
Copy-ready code
/* CSS */
color: #0055bb;
background-color: #0055bb;
/* Tailwind (arbitrary) */
class="text-[#0055bb] bg-[#0055bb]"
/* SCSS */
$brand: #0055bb;
/* SwiftUI */
Color(red: 0.000, green: 0.333, blue: 0.733)
/* Android */
Color.parseColor("#0055bb")Accessibility — WCAG contrast
Aa
#0055bb on white: 6.96:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#0055bb on black: 3.02:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red0.0%
Green33.3%
Blue73.3%
CMYK percentages
Cyan100.0%
Magenta54.5%
Yellow0.0%
Key (black)26.7%
Color previews
#0055bb text on a black background
contrast 3.02:1
Card sample
#0055bb text on a white background
contrast 6.96:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #0055bb;
Background color
Panel with #0055bb background
background-color: #0055bb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #0055bb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(0, 85, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(0, 85, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #0055bb; background: linear-gradient(135deg, #0055bb, #2800BB);