#3f6ddf
a balanced, vivid blue · cool · closest name: royalblue
RGB
63, 109, 223
HSL
223°, 71%, 56%
CMYK
72, 51, 0, 13
Luminance
0.1732
Every format
| HEX | #3f6ddf |
| RGB | rgb(63, 109, 223) |
| HSL | hsl(223, 71%, 56%) |
| CMYK | cmyk(72%, 51%, 0%, 13%) |
| LAB | lab(48.7 22.8 -62.8) |
| LCH | lch(48.7 66.8 289.9) |
| OKLCH | oklch(0.566 0.181 264.7) |
Copy-ready code
/* CSS */
color: #3f6ddf;
background-color: #3f6ddf;
/* Tailwind (arbitrary) */
class="text-[#3f6ddf] bg-[#3f6ddf]"
/* SCSS */
$brand: #3f6ddf;
/* SwiftUI */
Color(red: 0.247, green: 0.427, blue: 0.875)
/* Android */
Color.parseColor("#3f6ddf")Accessibility — WCAG contrast
Aa
#3f6ddf on white: 4.70:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3f6ddf on black: 4.46:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green42.7%
Blue87.5%
CMYK percentages
Cyan71.7%
Magenta51.1%
Yellow0.0%
Key (black)12.5%
Color previews
#3f6ddf text on a black background
contrast 4.46:1
Card sample
#3f6ddf text on a white background
contrast 4.70:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f6ddf;
Background color
Panel with #3f6ddf background
background-color: #3f6ddf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f6ddf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 109, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 109, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f6ddf; background: linear-gradient(135deg, #3f6ddf, #7C3FDF);