#281df3
a balanced, electric blue · warm · closest name: blue
RGB
40, 29, 243
HSL
243°, 90%, 53%
CMYK
84, 88, 0, 5
Luminance
0.0780
Every format
| HEX | #281df3 |
| RGB | rgb(40, 29, 243) |
| HSL | hsl(243, 90%, 53%) |
| CMYK | cmyk(84%, 88%, 0%, 5%) |
| LAB | lab(33.6 70.8 -99.0) |
| LCH | lch(33.6 121.7 305.6) |
| OKLCH | oklch(0.459 0.286 268.7) |
Copy-ready code
/* CSS */
color: #281df3;
background-color: #281df3;
/* Tailwind (arbitrary) */
class="text-[#281df3] bg-[#281df3]"
/* SCSS */
$brand: #281df3;
/* SwiftUI */
Color(red: 0.157, green: 0.114, blue: 0.953)
/* Android */
Color.parseColor("#281df3")Accessibility — WCAG contrast
Aa
#281df3 on white: 8.20:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#281df3 on black: 2.56:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green11.4%
Blue95.3%
CMYK percentages
Cyan83.5%
Magenta88.1%
Yellow0.0%
Key (black)4.7%
Color previews
#281df3 text on a black background
contrast 2.56:1
Card sample
#281df3 text on a white background
contrast 8.20:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #281df3;
Background color
Panel with #281df3 background
background-color: #281df3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #281df3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 29, 243, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 29, 243, 0.45);
Border & gradient
Gradient panel
border: 3px solid #281df3; background: linear-gradient(135deg, #281df3, #B71DF3);