#428dfd
a balanced, electric blue · cool · closest name: dodgerblue
RGB
66, 141, 253
HSL
216°, 98%, 63%
CMYK
74, 44, 0, 1
Luminance
0.2730
Every format
| HEX | #428dfd |
| RGB | rgb(66, 141, 253) |
| HSL | hsl(216, 98%, 63%) |
| CMYK | cmyk(74%, 44%, 0%, 1%) |
| LAB | lab(59.3 14.2 -62.5) |
| LCH | lch(59.3 64.0 282.8) |
| OKLCH | oklch(0.653 0.183 258.5) |
Copy-ready code
/* CSS */
color: #428dfd;
background-color: #428dfd;
/* Tailwind (arbitrary) */
class="text-[#428dfd] bg-[#428dfd]"
/* SCSS */
$brand: #428dfd;
/* SwiftUI */
Color(red: 0.259, green: 0.553, blue: 0.992)
/* Android */
Color.parseColor("#428dfd")Accessibility — WCAG contrast
Aa
#428dfd on white: 3.25:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#428dfd on black: 6.46:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green55.3%
Blue99.2%
CMYK percentages
Cyan73.9%
Magenta44.3%
Yellow0.0%
Key (black)0.8%
Color previews
#428dfd text on a black background
contrast 6.46:1
Card sample
#428dfd text on a white background
contrast 3.25:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #428dfd;
Background color
Panel with #428dfd background
background-color: #428dfd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #428dfd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 141, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 141, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #428dfd; background: linear-gradient(135deg, #428dfd, #7342FD);