#3399ee
a balanced, electric blue · cool · closest name: dodgerblue
RGB
51, 153, 238
HSL
207°, 85%, 57%
CMYK
79, 36, 0, 7
Luminance
0.2966
Every format
| HEX | #3399ee |
| RGB | rgb(51, 153, 238) |
| HSL | hsl(207, 85%, 57%) |
| CMYK | cmyk(79%, 36%, 0%, 7%) |
| LAB | lab(61.4 -0.0 -50.9) |
| LCH | lch(61.4 50.9 270.0) |
| OKLCH | oklch(0.665 0.156 248.2) |
Copy-ready code
/* CSS */
color: #3399ee;
background-color: #3399ee;
/* Tailwind (arbitrary) */
class="text-[#3399ee] bg-[#3399ee]"
/* SCSS */
$brand: #3399ee;
/* SwiftUI */
Color(red: 0.200, green: 0.600, blue: 0.933)
/* Android */
Color.parseColor("#3399ee")Accessibility — WCAG contrast
Aa
#3399ee on white: 3.03:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3399ee on black: 6.93:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green60.0%
Blue93.3%
CMYK percentages
Cyan78.6%
Magenta35.7%
Yellow0.0%
Key (black)6.7%
Color previews
#3399ee text on a black background
contrast 6.93:1
Card sample
#3399ee text on a white background
contrast 3.03:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3399ee;
Background color
Panel with #3399ee background
background-color: #3399ee;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3399ee;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 153, 238, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 153, 238, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3399ee; background: linear-gradient(135deg, #3399ee, #4A33EE);