#3b9fdf
a balanced, vivid blue · cool · closest name: steelblue
RGB
59, 159, 223
HSL
203°, 72%, 55%
CMYK
74, 29, 0, 13
Luminance
0.3105
Every format
| HEX | #3b9fdf |
| RGB | rgb(59, 159, 223) |
| HSL | hsl(203, 72%, 55%) |
| CMYK | cmyk(74%, 29%, 0%, 13%) |
| LAB | lab(62.5 -7.8 -40.7) |
| LCH | lch(62.5 41.4 259.1) |
| OKLCH | oklch(0.673 0.131 241.1) |
Copy-ready code
/* CSS */
color: #3b9fdf;
background-color: #3b9fdf;
/* Tailwind (arbitrary) */
class="text-[#3b9fdf] bg-[#3b9fdf]"
/* SCSS */
$brand: #3b9fdf;
/* SwiftUI */
Color(red: 0.231, green: 0.624, blue: 0.875)
/* Android */
Color.parseColor("#3b9fdf")Accessibility — WCAG contrast
Aa
#3b9fdf on white: 2.91:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#3b9fdf on black: 7.21:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red23.1%
Green62.4%
Blue87.5%
CMYK percentages
Cyan73.5%
Magenta28.7%
Yellow0.0%
Key (black)12.5%
Color previews
#3b9fdf text on a black background
contrast 7.21:1
Card sample
#3b9fdf text on a white background
contrast 2.91:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3b9fdf;
Background color
Panel with #3b9fdf background
background-color: #3b9fdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3b9fdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(59, 159, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(59, 159, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3b9fdf; background: linear-gradient(135deg, #3b9fdf, #443BDF);