#355df3
a balanced, electric blue · warm · closest name: royalblue
RGB
53, 93, 243
HSL
227°, 89%, 58%
CMYK
78, 62, 0, 5
Luminance
0.1506
Every format
| HEX | #355df3 |
| RGB | rgb(53, 93, 243) |
| HSL | hsl(227, 89%, 58%) |
| CMYK | cmyk(78%, 62%, 0%, 5%) |
| LAB | lab(45.7 38.9 -78.9) |
| LCH | lch(45.7 88.0 296.3) |
| OKLCH | oklch(0.547 0.229 266.8) |
Copy-ready code
/* CSS */
color: #355df3;
background-color: #355df3;
/* Tailwind (arbitrary) */
class="text-[#355df3] bg-[#355df3]"
/* SCSS */
$brand: #355df3;
/* SwiftUI */
Color(red: 0.208, green: 0.365, blue: 0.953)
/* Android */
Color.parseColor("#355df3")Accessibility — WCAG contrast
Aa
#355df3 on white: 5.24:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#355df3 on black: 4.01:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.8%
Green36.5%
Blue95.3%
CMYK percentages
Cyan78.2%
Magenta61.7%
Yellow0.0%
Key (black)4.7%
Color previews
#355df3 text on a black background
contrast 4.01:1
Card sample
#355df3 text on a white background
contrast 5.24:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #355df3;
Background color
Panel with #355df3 background
background-color: #355df3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #355df3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(53, 93, 243, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(53, 93, 243, 0.45);
Border & gradient
Gradient panel
border: 3px solid #355df3; background: linear-gradient(135deg, #355df3, #8C35F3);