#3388dd
a balanced, vivid blue · cool · closest name: dodgerblue
RGB
51, 136, 221
HSL
210°, 71%, 53%
CMYK
77, 39, 0, 13
Luminance
0.2353
Every format
| HEX | #3388dd |
| RGB | rgb(51, 136, 221) |
| HSL | hsl(210, 71%, 53%) |
| CMYK | cmyk(77%, 39%, 0%, 13%) |
| LAB | lab(55.6 3.9 -50.5) |
| LCH | lch(55.6 50.7 274.4) |
| OKLCH | oklch(0.618 0.152 251.7) |
Copy-ready code
/* CSS */
color: #3388dd;
background-color: #3388dd;
/* Tailwind (arbitrary) */
class="text-[#3388dd] bg-[#3388dd]"
/* SCSS */
$brand: #3388dd;
/* SwiftUI */
Color(red: 0.200, green: 0.533, blue: 0.867)
/* Android */
Color.parseColor("#3388dd")Accessibility — WCAG contrast
Aa
#3388dd on white: 3.68:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3388dd on black: 5.71:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green53.3%
Blue86.7%
CMYK percentages
Cyan76.9%
Magenta38.5%
Yellow0.0%
Key (black)13.3%
Color previews
#3388dd text on a black background
contrast 5.71:1
Card sample
#3388dd text on a white background
contrast 3.68:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3388dd;
Background color
Panel with #3388dd background
background-color: #3388dd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3388dd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 136, 221, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 136, 221, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3388dd; background: linear-gradient(135deg, #3388dd, #4F33DD);