#428bdf
a balanced, vivid blue · cool · closest name: dodgerblue
RGB
66, 139, 223
HSL
212°, 71%, 57%
CMYK
70, 38, 0, 13
Luminance
0.2495
Every format
| HEX | #428bdf |
| RGB | rgb(66, 139, 223) |
| HSL | hsl(212, 71%, 57%) |
| CMYK | cmyk(70%, 38%, 0%, 13%) |
| LAB | lab(57.0 4.7 -49.4) |
| LCH | lch(57.0 49.6 275.4) |
| OKLCH | oklch(0.630 0.146 253.8) |
Copy-ready code
/* CSS */
color: #428bdf;
background-color: #428bdf;
/* Tailwind (arbitrary) */
class="text-[#428bdf] bg-[#428bdf]"
/* SCSS */
$brand: #428bdf;
/* SwiftUI */
Color(red: 0.259, green: 0.545, blue: 0.875)
/* Android */
Color.parseColor("#428bdf")Accessibility — WCAG contrast
Aa
#428bdf on white: 3.51:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#428bdf on black: 5.99:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green54.5%
Blue87.5%
CMYK percentages
Cyan70.4%
Magenta37.7%
Yellow0.0%
Key (black)12.5%
Color previews
#428bdf text on a black background
contrast 5.99:1
Card sample
#428bdf text on a white background
contrast 3.51:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #428bdf;
Background color
Panel with #428bdf background
background-color: #428bdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #428bdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 139, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 139, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #428bdf; background: linear-gradient(135deg, #428bdf, #6242DF);