#042df1
a balanced, electric blue · warm · closest name: blue
RGB
4, 45, 241
HSL
230°, 97%, 48%
CMYK
98, 81, 0, 6
Luminance
0.0825
Every format
| HEX | #042df1 |
| RGB | rgb(4, 45, 241) |
| HSL | hsl(230, 97%, 48%) |
| CMYK | cmyk(98%, 81%, 0%, 6%) |
| LAB | lab(34.5 63.3 -96.3) |
| LCH | lch(34.5 115.2 303.3) |
| OKLCH | oklch(0.462 0.280 264.4) |
Copy-ready code
/* CSS */
color: #042df1;
background-color: #042df1;
/* Tailwind (arbitrary) */
class="text-[#042df1] bg-[#042df1]"
/* SCSS */
$brand: #042df1;
/* SwiftUI */
Color(red: 0.016, green: 0.176, blue: 0.945)
/* Android */
Color.parseColor("#042df1")Accessibility — WCAG contrast
Aa
#042df1 on white: 7.92:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#042df1 on black: 2.65:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green17.6%
Blue94.5%
CMYK percentages
Cyan98.3%
Magenta81.3%
Yellow0.0%
Key (black)5.5%
Color previews
#042df1 text on a black background
contrast 2.65:1
Card sample
#042df1 text on a white background
contrast 7.92:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #042df1;
Background color
Panel with #042df1 background
background-color: #042df1;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #042df1;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 45, 241, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 45, 241, 0.45);
Border & gradient
Gradient panel
border: 3px solid #042df1; background: linear-gradient(135deg, #042df1, #7904F1);