#397eb5
a balanced, vivid blue · cool · closest name: steelblue
RGB
57, 126, 181
HSL
207°, 52%, 47%
CMYK
69, 30, 0, 29
Luminance
0.1913
Every format
| HEX | #397eb5 |
| RGB | rgb(57, 126, 181) |
| HSL | hsl(207, 52%, 47%) |
| CMYK | cmyk(69%, 30%, 0%, 29%) |
| LAB | lab(50.8 -3.7 -35.4) |
| LCH | lch(50.8 35.5 264.0) |
| OKLCH | oklch(0.574 0.110 245.5) |
Copy-ready code
/* CSS */
color: #397eb5;
background-color: #397eb5;
/* Tailwind (arbitrary) */
class="text-[#397eb5] bg-[#397eb5]"
/* SCSS */
$brand: #397eb5;
/* SwiftUI */
Color(red: 0.224, green: 0.494, blue: 0.710)
/* Android */
Color.parseColor("#397eb5")Accessibility — WCAG contrast
Aa
#397eb5 on white: 4.35:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#397eb5 on black: 4.83:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green49.4%
Blue71.0%
CMYK percentages
Cyan68.5%
Magenta30.4%
Yellow0.0%
Key (black)29.0%
Color previews
#397eb5 text on a black background
contrast 4.83:1
Card sample
#397eb5 text on a white background
contrast 4.35:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #397eb5;
Background color
Panel with #397eb5 background
background-color: #397eb5;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #397eb5;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 126, 181, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 126, 181, 0.45);
Border & gradient
Gradient panel
border: 3px solid #397eb5; background: linear-gradient(135deg, #397eb5, #4739B5);