#288eee
a balanced, electric blue · cool · closest name: dodgerblue
RGB
40, 142, 238
HSL
209°, 85%, 55%
CMYK
83, 40, 0, 7
Luminance
0.2597
Every format
| HEX | #288eee |
| RGB | rgb(40, 142, 238) |
| HSL | hsl(209, 85%, 55%) |
| CMYK | cmyk(83%, 40%, 0%, 7%) |
| LAB | lab(58.0 5.5 -56.2) |
| LCH | lch(58.0 56.5 275.6) |
| OKLCH | oklch(0.639 0.170 251.6) |
Copy-ready code
/* CSS */
color: #288eee;
background-color: #288eee;
/* Tailwind (arbitrary) */
class="text-[#288eee] bg-[#288eee]"
/* SCSS */
$brand: #288eee;
/* SwiftUI */
Color(red: 0.157, green: 0.557, blue: 0.933)
/* Android */
Color.parseColor("#288eee")Accessibility — WCAG contrast
Aa
#288eee on white: 3.39:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#288eee on black: 6.19:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green55.7%
Blue93.3%
CMYK percentages
Cyan83.2%
Magenta40.3%
Yellow0.0%
Key (black)6.7%
Color previews
#288eee text on a black background
contrast 6.19:1
Card sample
#288eee text on a white background
contrast 3.39:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #288eee;
Background color
Panel with #288eee background
background-color: #288eee;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #288eee;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 142, 238, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 142, 238, 0.45);
Border & gradient
Gradient panel
border: 3px solid #288eee; background: linear-gradient(135deg, #288eee, #4628EE);