#3388cc
a balanced, vivid blue · cool · closest name: steelblue
RGB
51, 136, 204
HSL
207°, 60%, 50%
CMYK
75, 33, 0, 20
Luminance
0.2267
Every format
| HEX | #3388cc |
| RGB | rgb(51, 136, 204) |
| HSL | hsl(207, 60%, 50%) |
| CMYK | cmyk(75%, 33%, 0%, 20%) |
| LAB | lab(54.7 -2.3 -42.4) |
| LCH | lch(54.7 42.4 266.9) |
| OKLCH | oklch(0.608 0.131 246.6) |
Copy-ready code
/* CSS */
color: #3388cc;
background-color: #3388cc;
/* Tailwind (arbitrary) */
class="text-[#3388cc] bg-[#3388cc]"
/* SCSS */
$brand: #3388cc;
/* SwiftUI */
Color(red: 0.200, green: 0.533, blue: 0.800)
/* Android */
Color.parseColor("#3388cc")Accessibility — WCAG contrast
Aa
#3388cc on white: 3.79:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3388cc on black: 5.53:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green53.3%
Blue80.0%
CMYK percentages
Cyan75.0%
Magenta33.3%
Yellow0.0%
Key (black)20.0%
Color previews
#3388cc text on a black background
contrast 5.53:1
Card sample
#3388cc text on a white background
contrast 3.79:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3388cc;
Background color
Panel with #3388cc background
background-color: #3388cc;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3388cc;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 136, 204, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 136, 204, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3388cc; background: linear-gradient(135deg, #3388cc, #4433CC);