#577df0
a balanced, electric blue · warm · closest name: royalblue
RGB
87, 125, 240
HSL
225°, 84%, 64%
CMYK
64, 48, 0, 6
Luminance
0.2298
Every format
| HEX | #577df0 |
| RGB | rgb(87, 125, 240) |
| HSL | hsl(225, 84%, 64%) |
| CMYK | cmyk(64%, 48%, 0%, 6%) |
| LAB | lab(55.0 22.4 -62.0) |
| LCH | lch(55.0 65.9 289.8) |
| OKLCH | oklch(0.621 0.178 267.3) |
Copy-ready code
/* CSS */
color: #577df0;
background-color: #577df0;
/* Tailwind (arbitrary) */
class="text-[#577df0] bg-[#577df0]"
/* SCSS */
$brand: #577df0;
/* SwiftUI */
Color(red: 0.341, green: 0.490, blue: 0.941)
/* Android */
Color.parseColor("#577df0")Accessibility — WCAG contrast
Aa
#577df0 on white: 3.75:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#577df0 on black: 5.60:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red34.1%
Green49.0%
Blue94.1%
CMYK percentages
Cyan63.7%
Magenta47.9%
Yellow0.0%
Key (black)5.9%
Color previews
#577df0 text on a black background
contrast 5.60:1
Card sample
#577df0 text on a white background
contrast 3.75:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #577df0;
Background color
Panel with #577df0 background
background-color: #577df0;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #577df0;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(87, 125, 240, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(87, 125, 240, 0.45);
Border & gradient
Gradient panel
border: 3px solid #577df0; background: linear-gradient(135deg, #577df0, #9757F0);