#357df4
a balanced, electric blue · cool · closest name: royalblue
RGB
53, 125, 244
HSL
217°, 90%, 58%
CMYK
78, 49, 0, 4
Luminance
0.2196
Every format
| HEX | #357df4 |
| RGB | rgb(53, 125, 244) |
| HSL | hsl(217, 90%, 58%) |
| CMYK | cmyk(78%, 49%, 0%, 4%) |
| LAB | lab(54.0 19.3 -66.0) |
| LCH | lch(54.0 68.8 286.3) |
| OKLCH | oklch(0.610 0.193 260.0) |
Copy-ready code
/* CSS */
color: #357df4;
background-color: #357df4;
/* Tailwind (arbitrary) */
class="text-[#357df4] bg-[#357df4]"
/* SCSS */
$brand: #357df4;
/* SwiftUI */
Color(red: 0.208, green: 0.490, blue: 0.957)
/* Android */
Color.parseColor("#357df4")Accessibility — WCAG contrast
Aa
#357df4 on white: 3.90:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#357df4 on black: 5.39:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.8%
Green49.0%
Blue95.7%
CMYK percentages
Cyan78.3%
Magenta48.8%
Yellow0.0%
Key (black)4.3%
Color previews
#357df4 text on a black background
contrast 5.39:1
Card sample
#357df4 text on a white background
contrast 3.90:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #357df4;
Background color
Panel with #357df4 background
background-color: #357df4;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #357df4;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(53, 125, 244, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(53, 125, 244, 0.45);
Border & gradient
Gradient panel
border: 3px solid #357df4; background: linear-gradient(135deg, #357df4, #6C35F4);