#397dbb
a balanced, vivid blue · cool · closest name: steelblue
RGB
57, 125, 187
HSL
209°, 53%, 48%
CMYK
70, 33, 0, 27
Luminance
0.1912
Every format
| HEX | #397dbb |
| RGB | rgb(57, 125, 187) |
| HSL | hsl(209, 53%, 48%) |
| CMYK | cmyk(70%, 33%, 0%, 27%) |
| LAB | lab(50.8 -1.0 -38.8) |
| LCH | lch(50.8 38.8 268.5) |
| OKLCH | oklch(0.575 0.118 248.8) |
Copy-ready code
/* CSS */
color: #397dbb;
background-color: #397dbb;
/* Tailwind (arbitrary) */
class="text-[#397dbb] bg-[#397dbb]"
/* SCSS */
$brand: #397dbb;
/* SwiftUI */
Color(red: 0.224, green: 0.490, blue: 0.733)
/* Android */
Color.parseColor("#397dbb")Accessibility — WCAG contrast
Aa
#397dbb on white: 4.35:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#397dbb on black: 4.82:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green49.0%
Blue73.3%
CMYK percentages
Cyan69.5%
Magenta33.2%
Yellow0.0%
Key (black)26.7%
Color previews
#397dbb text on a black background
contrast 4.82:1
Card sample
#397dbb text on a white background
contrast 4.35:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #397dbb;
Background color
Panel with #397dbb background
background-color: #397dbb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #397dbb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 125, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 125, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #397dbb; background: linear-gradient(135deg, #397dbb, #4C39BB);