#3f8cdb
a balanced, vivid blue · cool · closest name: steelblue
RGB
63, 140, 219
HSL
210°, 68%, 55%
CMYK
71, 36, 0, 14
Luminance
0.2493
Every format
| HEX | #3f8cdb |
| RGB | rgb(63, 140, 219) |
| HSL | hsl(210, 68%, 55%) |
| CMYK | cmyk(71%, 36%, 0%, 14%) |
| LAB | lab(57.0 2.3 -47.2) |
| LCH | lch(57.0 47.3 272.8) |
| OKLCH | oklch(0.629 0.141 251.6) |
Copy-ready code
/* CSS */
color: #3f8cdb;
background-color: #3f8cdb;
/* Tailwind (arbitrary) */
class="text-[#3f8cdb] bg-[#3f8cdb]"
/* SCSS */
$brand: #3f8cdb;
/* SwiftUI */
Color(red: 0.247, green: 0.549, blue: 0.859)
/* Android */
Color.parseColor("#3f8cdb")Accessibility — WCAG contrast
Aa
#3f8cdb on white: 3.51:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3f8cdb on black: 5.99:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green54.9%
Blue85.9%
CMYK percentages
Cyan71.2%
Magenta36.1%
Yellow0.0%
Key (black)14.1%
Color previews
#3f8cdb text on a black background
contrast 5.99:1
Card sample
#3f8cdb text on a white background
contrast 3.51:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f8cdb;
Background color
Panel with #3f8cdb background
background-color: #3f8cdb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f8cdb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 140, 219, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 140, 219, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f8cdb; background: linear-gradient(135deg, #3f8cdb, #5A3FDB);