#577cef
a balanced, electric blue · warm · closest name: royalblue
RGB
87, 124, 239
HSL
225°, 83%, 64%
CMYK
64, 48, 0, 6
Luminance
0.2267
Every format
| HEX | #577cef |
| RGB | rgb(87, 124, 239) |
| HSL | hsl(225, 83%, 64%) |
| CMYK | cmyk(64%, 48%, 0%, 6%) |
| LAB | lab(54.7 22.6 -61.9) |
| LCH | lch(54.7 65.9 290.1) |
| OKLCH | oklch(0.618 0.177 267.6) |
Copy-ready code
/* CSS */
color: #577cef;
background-color: #577cef;
/* Tailwind (arbitrary) */
class="text-[#577cef] bg-[#577cef]"
/* SCSS */
$brand: #577cef;
/* SwiftUI */
Color(red: 0.341, green: 0.486, blue: 0.937)
/* Android */
Color.parseColor("#577cef")Accessibility — WCAG contrast
Aa
#577cef on white: 3.79:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#577cef on black: 5.53:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red34.1%
Green48.6%
Blue93.7%
CMYK percentages
Cyan63.6%
Magenta48.1%
Yellow0.0%
Key (black)6.3%
Color previews
#577cef text on a black background
contrast 5.53:1
Card sample
#577cef text on a white background
contrast 3.79:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #577cef;
Background color
Panel with #577cef background
background-color: #577cef;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #577cef;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(87, 124, 239, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(87, 124, 239, 0.45);
Border & gradient
Gradient panel
border: 3px solid #577cef; background: linear-gradient(135deg, #577cef, #9757EF);