#307df3
a balanced, electric blue · cool · closest name: royalblue
RGB
48, 125, 243
HSL
216°, 89%, 57%
CMYK
80, 49, 0, 5
Luminance
0.2177
Every format
| HEX | #307df3 |
| RGB | rgb(48, 125, 243) |
| HSL | hsl(216, 89%, 57%) |
| CMYK | cmyk(80%, 49%, 0%, 5%) |
| LAB | lab(53.8 18.4 -65.8) |
| LCH | lch(53.8 68.3 285.6) |
| OKLCH | oklch(0.607 0.193 259.1) |
Copy-ready code
/* CSS */
color: #307df3;
background-color: #307df3;
/* Tailwind (arbitrary) */
class="text-[#307df3] bg-[#307df3]"
/* SCSS */
$brand: #307df3;
/* SwiftUI */
Color(red: 0.188, green: 0.490, blue: 0.953)
/* Android */
Color.parseColor("#307df3")Accessibility — WCAG contrast
Aa
#307df3 on white: 3.92:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#307df3 on black: 5.35:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red18.8%
Green49.0%
Blue95.3%
CMYK percentages
Cyan80.2%
Magenta48.6%
Yellow0.0%
Key (black)4.7%
Color previews
#307df3 text on a black background
contrast 5.35:1
Card sample
#307df3 text on a white background
contrast 3.92:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #307df3;
Background color
Panel with #307df3 background
background-color: #307df3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #307df3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(48, 125, 243, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(48, 125, 243, 0.45);
Border & gradient
Gradient panel
border: 3px solid #307df3; background: linear-gradient(135deg, #307df3, #6530F3);