#3970eb
a balanced, electric blue · cool · closest name: royalblue
RGB
57, 112, 235
HSL
222°, 82%, 57%
CMYK
76, 52, 0, 8
Luminance
0.1846
Every format
| HEX | #3970eb |
| RGB | rgb(57, 112, 235) |
| HSL | hsl(222, 82%, 57%) |
| CMYK | cmyk(76%, 52%, 0%, 8%) |
| LAB | lab(50.0 24.5 -67.3) |
| LCH | lch(50.0 71.6 290.0) |
| OKLCH | oklch(0.578 0.195 263.4) |
Copy-ready code
/* CSS */
color: #3970eb;
background-color: #3970eb;
/* Tailwind (arbitrary) */
class="text-[#3970eb] bg-[#3970eb]"
/* SCSS */
$brand: #3970eb;
/* SwiftUI */
Color(red: 0.224, green: 0.439, blue: 0.922)
/* Android */
Color.parseColor("#3970eb")Accessibility — WCAG contrast
Aa
#3970eb on white: 4.48:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3970eb on black: 4.69:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green43.9%
Blue92.2%
CMYK percentages
Cyan75.7%
Magenta52.3%
Yellow0.0%
Key (black)7.8%
Color previews
#3970eb text on a black background
contrast 4.69:1
Card sample
#3970eb text on a white background
contrast 4.48:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3970eb;
Background color
Panel with #3970eb background
background-color: #3970eb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3970eb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 112, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 112, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3970eb; background: linear-gradient(135deg, #3970eb, #7939EB);