#399cd3
a balanced, vivid blue · cool · closest name: steelblue
RGB
57, 156, 211
HSL
201°, 64%, 53%
CMYK
73, 26, 0, 17
Luminance
0.2935
Every format
| HEX | #399cd3 |
| RGB | rgb(57, 156, 211) |
| HSL | hsl(201, 64%, 53%) |
| CMYK | cmyk(73%, 26%, 0%, 17%) |
| LAB | lab(61.1 -10.5 -36.3) |
| LCH | lch(61.1 37.8 253.9) |
| OKLCH | oklch(0.660 0.122 237.4) |
Copy-ready code
/* CSS */
color: #399cd3;
background-color: #399cd3;
/* Tailwind (arbitrary) */
class="text-[#399cd3] bg-[#399cd3]"
/* SCSS */
$brand: #399cd3;
/* SwiftUI */
Color(red: 0.224, green: 0.612, blue: 0.827)
/* Android */
Color.parseColor("#399cd3")Accessibility — WCAG contrast
Aa
#399cd3 on white: 3.06:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#399cd3 on black: 6.87:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green61.2%
Blue82.7%
CMYK percentages
Cyan73.0%
Magenta26.1%
Yellow0.0%
Key (black)17.3%
Color previews
#399cd3 text on a black background
contrast 6.87:1
Card sample
#399cd3 text on a white background
contrast 3.06:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #399cd3;
Background color
Panel with #399cd3 background
background-color: #399cd3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #399cd3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 156, 211, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 156, 211, 0.45);
Border & gradient
Gradient panel
border: 3px solid #399cd3; background: linear-gradient(135deg, #399cd3, #3C39D3);