#4f57df
a balanced, vivid blue · warm · closest name: slateblue
RGB
79, 87, 223
HSL
237°, 69%, 59%
CMYK
65, 61, 0, 13
Luminance
0.1381
Every format
| HEX | #4f57df |
| RGB | rgb(79, 87, 223) |
| HSL | hsl(237, 69%, 59%) |
| CMYK | cmyk(65%, 61%, 0%, 13%) |
| LAB | lab(44.0 38.7 -70.4) |
| LCH | lch(44.0 80.3 298.8) |
| OKLCH | oklch(0.532 0.203 274.5) |
Copy-ready code
/* CSS */
color: #4f57df;
background-color: #4f57df;
/* Tailwind (arbitrary) */
class="text-[#4f57df] bg-[#4f57df]"
/* SCSS */
$brand: #4f57df;
/* SwiftUI */
Color(red: 0.310, green: 0.341, blue: 0.875)
/* Android */
Color.parseColor("#4f57df")Accessibility — WCAG contrast
Aa
#4f57df on white: 5.58:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#4f57df on black: 3.76:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.0%
Green34.1%
Blue87.5%
CMYK percentages
Cyan64.6%
Magenta61.0%
Yellow0.0%
Key (black)12.5%
Color previews
#4f57df text on a black background
contrast 3.76:1
Card sample
#4f57df text on a white background
contrast 5.58:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #4f57df;
Background color
Panel with #4f57df background
background-color: #4f57df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #4f57df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(79, 87, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(79, 87, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4f57df; background: linear-gradient(135deg, #4f57df, #A74FDF);