#042df0
a balanced, electric blue · warm · closest name: blue
RGB
4, 45, 240
HSL
230°, 97%, 48%
CMYK
98, 81, 0, 6
Luminance
0.0819
Every format
| HEX | #042df0 |
| RGB | rgb(4, 45, 240) |
| HSL | hsl(230, 97%, 48%) |
| CMYK | cmyk(98%, 81%, 0%, 6%) |
| LAB | lab(34.4 63.0 -95.9) |
| LCH | lch(34.4 114.8 303.3) |
| OKLCH | oklch(0.461 0.279 264.4) |
Copy-ready code
/* CSS */
color: #042df0;
background-color: #042df0;
/* Tailwind (arbitrary) */
class="text-[#042df0] bg-[#042df0]"
/* SCSS */
$brand: #042df0;
/* SwiftUI */
Color(red: 0.016, green: 0.176, blue: 0.941)
/* Android */
Color.parseColor("#042df0")Accessibility — WCAG contrast
Aa
#042df0 on white: 7.96:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#042df0 on black: 2.64:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green17.6%
Blue94.1%
CMYK percentages
Cyan98.3%
Magenta81.3%
Yellow0.0%
Key (black)5.9%
Color previews
#042df0 text on a black background
contrast 2.64:1
Card sample
#042df0 text on a white background
contrast 7.96:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #042df0;
Background color
Panel with #042df0 background
background-color: #042df0;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #042df0;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 45, 240, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 45, 240, 0.45);
Border & gradient
Gradient panel
border: 3px solid #042df0; background: linear-gradient(135deg, #042df0, #7804F0);