#288df2
a balanced, electric blue · cool · closest name: dodgerblue
RGB
40, 141, 242
HSL
210°, 89%, 55%
CMYK
84, 42, 0, 5
Luminance
0.2591
Every format
| HEX | #288df2 |
| RGB | rgb(40, 141, 242) |
| HSL | hsl(210, 89%, 55%) |
| CMYK | cmyk(84%, 42%, 0%, 5%) |
| LAB | lab(58.0 7.6 -58.5) |
| LCH | lch(58.0 59.0 277.4) |
| OKLCH | oklch(0.639 0.175 252.8) |
Copy-ready code
/* CSS */
color: #288df2;
background-color: #288df2;
/* Tailwind (arbitrary) */
class="text-[#288df2] bg-[#288df2]"
/* SCSS */
$brand: #288df2;
/* SwiftUI */
Color(red: 0.157, green: 0.553, blue: 0.949)
/* Android */
Color.parseColor("#288df2")Accessibility — WCAG contrast
Aa
#288df2 on white: 3.40:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#288df2 on black: 6.18:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green55.3%
Blue94.9%
CMYK percentages
Cyan83.5%
Magenta41.7%
Yellow0.0%
Key (black)5.1%
Color previews
#288df2 text on a black background
contrast 6.18:1
Card sample
#288df2 text on a white background
contrast 3.40:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #288df2;
Background color
Panel with #288df2 background
background-color: #288df2;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #288df2;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 141, 242, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 141, 242, 0.45);
Border & gradient
Gradient panel
border: 3px solid #288df2; background: linear-gradient(135deg, #288df2, #4A28F2);