#378dbb
a balanced, vivid blue · cool · closest name: steelblue
RGB
55, 141, 187
HSL
201°, 55%, 48%
CMYK
71, 25, 0, 27
Luminance
0.2345
Every format
| HEX | #378dbb |
| RGB | rgb(55, 141, 187) |
| HSL | hsl(201, 55%, 48%) |
| CMYK | cmyk(71%, 25%, 0%, 27%) |
| LAB | lab(55.5 -10.6 -31.5) |
| LCH | lch(55.5 33.2 251.4) |
| OKLCH | oklch(0.612 0.107 235.9) |
Copy-ready code
/* CSS */
color: #378dbb;
background-color: #378dbb;
/* Tailwind (arbitrary) */
class="text-[#378dbb] bg-[#378dbb]"
/* SCSS */
$brand: #378dbb;
/* SwiftUI */
Color(red: 0.216, green: 0.553, blue: 0.733)
/* Android */
Color.parseColor("#378dbb")Accessibility — WCAG contrast
Aa
#378dbb on white: 3.69:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#378dbb on black: 5.69:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red21.6%
Green55.3%
Blue73.3%
CMYK percentages
Cyan70.6%
Magenta24.6%
Yellow0.0%
Key (black)26.7%
Color previews
#378dbb text on a black background
contrast 5.69:1
Card sample
#378dbb text on a white background
contrast 3.69:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #378dbb;
Background color
Panel with #378dbb background
background-color: #378dbb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #378dbb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(55, 141, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(55, 141, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #378dbb; background: linear-gradient(135deg, #378dbb, #3937BB);