#4b57df
a balanced, vivid blue · warm · closest name: slateblue
RGB
75, 87, 223
HSL
235°, 70%, 58%
CMYK
66, 61, 0, 13
Luminance
0.1364
Every format
| HEX | #4b57df |
| RGB | rgb(75, 87, 223) |
| HSL | hsl(235, 70%, 58%) |
| CMYK | cmyk(66%, 61%, 0%, 13%) |
| LAB | lab(43.7 38.1 -70.8) |
| LCH | lch(43.7 80.4 298.3) |
| OKLCH | oklch(0.530 0.204 273.3) |
Copy-ready code
/* CSS */
color: #4b57df;
background-color: #4b57df;
/* Tailwind (arbitrary) */
class="text-[#4b57df] bg-[#4b57df]"
/* SCSS */
$brand: #4b57df;
/* SwiftUI */
Color(red: 0.294, green: 0.341, blue: 0.875)
/* Android */
Color.parseColor("#4b57df")Accessibility — WCAG contrast
Aa
#4b57df on white: 5.63:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#4b57df on black: 3.73:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red29.4%
Green34.1%
Blue87.5%
CMYK percentages
Cyan66.4%
Magenta61.0%
Yellow0.0%
Key (black)12.5%
Color previews
#4b57df text on a black background
contrast 3.73:1
Card sample
#4b57df text on a white background
contrast 5.63:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #4b57df;
Background color
Panel with #4b57df background
background-color: #4b57df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #4b57df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(75, 87, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(75, 87, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4b57df; background: linear-gradient(135deg, #4b57df, #A24BDF);