#237df8
a balanced, electric blue · cool · closest name: royalblue
RGB
35, 125, 248
HSL
215°, 94%, 56%
CMYK
86, 50, 0, 3
Luminance
0.2180
Every format
| HEX | #237df8 |
| RGB | rgb(35, 125, 248) |
| HSL | hsl(215, 94%, 56%) |
| CMYK | cmyk(86%, 50%, 0%, 3%) |
| LAB | lab(53.8 19.3 -68.5) |
| LCH | lch(53.8 71.2 285.7) |
| OKLCH | oklch(0.608 0.202 258.1) |
Copy-ready code
/* CSS */
color: #237df8;
background-color: #237df8;
/* Tailwind (arbitrary) */
class="text-[#237df8] bg-[#237df8]"
/* SCSS */
$brand: #237df8;
/* SwiftUI */
Color(red: 0.137, green: 0.490, blue: 0.973)
/* Android */
Color.parseColor("#237df8")Accessibility — WCAG contrast
Aa
#237df8 on white: 3.92:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#237df8 on black: 5.36:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red13.7%
Green49.0%
Blue97.3%
CMYK percentages
Cyan85.9%
Magenta49.6%
Yellow0.0%
Key (black)2.7%
Color previews
#237df8 text on a black background
contrast 5.36:1
Card sample
#237df8 text on a white background
contrast 3.92:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #237df8;
Background color
Panel with #237df8 background
background-color: #237df8;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #237df8;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(35, 125, 248, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(35, 125, 248, 0.45);
Border & gradient
Gradient panel
border: 3px solid #237df8; background: linear-gradient(135deg, #237df8, #5723F8);