#287df3
a balanced, electric blue · cool · closest name: dodgerblue
RGB
40, 125, 243
HSL
215°, 89%, 56%
CMYK
84, 49, 0, 5
Luminance
0.2159
Every format
| HEX | #287df3 |
| RGB | rgb(40, 125, 243) |
| HSL | hsl(215, 89%, 56%) |
| CMYK | cmyk(84%, 49%, 0%, 5%) |
| LAB | lab(53.6 17.8 -66.1) |
| LCH | lch(53.6 68.4 285.0) |
| OKLCH | oklch(0.605 0.195 258.0) |
Copy-ready code
/* CSS */
color: #287df3;
background-color: #287df3;
/* Tailwind (arbitrary) */
class="text-[#287df3] bg-[#287df3]"
/* SCSS */
$brand: #287df3;
/* SwiftUI */
Color(red: 0.157, green: 0.490, blue: 0.953)
/* Android */
Color.parseColor("#287df3")Accessibility — WCAG contrast
Aa
#287df3 on white: 3.95:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#287df3 on black: 5.32:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green49.0%
Blue95.3%
CMYK percentages
Cyan83.5%
Magenta48.6%
Yellow0.0%
Key (black)4.7%
Color previews
#287df3 text on a black background
contrast 5.32:1
Card sample
#287df3 text on a white background
contrast 3.95:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #287df3;
Background color
Panel with #287df3 background
background-color: #287df3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #287df3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 125, 243, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 125, 243, 0.45);
Border & gradient
Gradient panel
border: 3px solid #287df3; background: linear-gradient(135deg, #287df3, #5A28F3);