#28f3fd
a balanced, electric cyan · cool · closest name: cyan
RGB
40, 243, 253
HSL
183°, 98%, 58%
CMYK
84, 4, 0, 1
Luminance
0.7164
Every format
| HEX | #28f3fd |
| RGB | rgb(40, 243, 253) |
| HSL | hsl(183, 98%, 58%) |
| CMYK | cmyk(84%, 4%, 0%, 1%) |
| LAB | lab(87.8 -42.0 -18.1) |
| LCH | lch(87.8 45.7 203.2) |
| OKLCH | oklch(0.879 0.144 200.4) |
Copy-ready code
/* CSS */
color: #28f3fd;
background-color: #28f3fd;
/* Tailwind (arbitrary) */
class="text-[#28f3fd] bg-[#28f3fd]"
/* SCSS */
$brand: #28f3fd;
/* SwiftUI */
Color(red: 0.157, green: 0.953, blue: 0.992)
/* Android */
Color.parseColor("#28f3fd")Accessibility — WCAG contrast
Aa
#28f3fd on white: 1.37:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#28f3fd on black: 15.33:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green95.3%
Blue99.2%
CMYK percentages
Cyan84.2%
Magenta4.0%
Yellow0.0%
Key (black)0.8%
Color previews
#28f3fd text on a black background
contrast 15.33:1
Card sample
#28f3fd text on a white background
contrast 1.37:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #28f3fd;
Background color
Panel with #28f3fd background
background-color: #28f3fd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #28f3fd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 243, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 243, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #28f3fd; background: linear-gradient(135deg, #28f3fd, #2865FD);