#306df4
a balanced, electric blue · cool · closest name: royalblue
RGB
48, 109, 244
HSL
221°, 90%, 57%
CMYK
80, 55, 0, 4
Luminance
0.1810
Every format
| HEX | #306df4 |
| RGB | rgb(48, 109, 244) |
| HSL | hsl(221, 90%, 57%) |
| CMYK | cmyk(80%, 55%, 0%, 4%) |
| LAB | lab(49.6 28.8 -73.1) |
| LCH | lch(49.6 78.5 291.5) |
| OKLCH | oklch(0.576 0.213 263.1) |
Copy-ready code
/* CSS */
color: #306df4;
background-color: #306df4;
/* Tailwind (arbitrary) */
class="text-[#306df4] bg-[#306df4]"
/* SCSS */
$brand: #306df4;
/* SwiftUI */
Color(red: 0.188, green: 0.427, blue: 0.957)
/* Android */
Color.parseColor("#306df4")Accessibility — WCAG contrast
Aa
#306df4 on white: 4.55:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#306df4 on black: 4.62:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red18.8%
Green42.7%
Blue95.7%
CMYK percentages
Cyan80.3%
Magenta55.3%
Yellow0.0%
Key (black)4.3%
Color previews
#306df4 text on a black background
contrast 4.62:1
Card sample
#306df4 text on a white background
contrast 4.55:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #306df4;
Background color
Panel with #306df4 background
background-color: #306df4;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #306df4;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(48, 109, 244, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(48, 109, 244, 0.45);
Border & gradient
Gradient panel
border: 3px solid #306df4; background: linear-gradient(135deg, #306df4, #7630F4);