#3f9bda
a balanced, vivid blue · cool · closest name: steelblue
RGB
63, 155, 218
HSL
204°, 68%, 55%
CMYK
71, 29, 0, 15
Luminance
0.2956
Every format
| HEX | #3f9bda |
| RGB | rgb(63, 155, 218) |
| HSL | hsl(204, 68%, 55%) |
| CMYK | cmyk(71%, 29%, 0%, 15%) |
| LAB | lab(61.3 -6.8 -39.9) |
| LCH | lch(61.3 40.5 260.4) |
| OKLCH | oklch(0.663 0.127 242.3) |
Copy-ready code
/* CSS */
color: #3f9bda;
background-color: #3f9bda;
/* Tailwind (arbitrary) */
class="text-[#3f9bda] bg-[#3f9bda]"
/* SCSS */
$brand: #3f9bda;
/* SwiftUI */
Color(red: 0.247, green: 0.608, blue: 0.855)
/* Android */
Color.parseColor("#3f9bda")Accessibility — WCAG contrast
Aa
#3f9bda on white: 3.04:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3f9bda on black: 6.91:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green60.8%
Blue85.5%
CMYK percentages
Cyan71.1%
Magenta28.9%
Yellow0.0%
Key (black)14.5%
Color previews
#3f9bda text on a black background
contrast 6.91:1
Card sample
#3f9bda text on a white background
contrast 3.04:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f9bda;
Background color
Panel with #3f9bda background
background-color: #3f9bda;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f9bda;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 155, 218, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 155, 218, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f9bda; background: linear-gradient(135deg, #3f9bda, #4A3FDA);