#3989cf
a balanced, vivid blue · cool · closest name: steelblue
RGB
57, 137, 207
HSL
208°, 61%, 52%
CMYK
73, 34, 0, 19
Luminance
0.2327
Every format
| HEX | #3989cf |
| RGB | rgb(57, 137, 207) |
| HSL | hsl(208, 61%, 52%) |
| CMYK | cmyk(73%, 34%, 0%, 19%) |
| LAB | lab(55.3 -1.0 -43.1) |
| LCH | lch(55.3 43.1 268.6) |
| OKLCH | oklch(0.614 0.132 248.3) |
Copy-ready code
/* CSS */
color: #3989cf;
background-color: #3989cf;
/* Tailwind (arbitrary) */
class="text-[#3989cf] bg-[#3989cf]"
/* SCSS */
$brand: #3989cf;
/* SwiftUI */
Color(red: 0.224, green: 0.537, blue: 0.812)
/* Android */
Color.parseColor("#3989cf")Accessibility — WCAG contrast
Aa
#3989cf on white: 3.71:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3989cf on black: 5.65:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green53.7%
Blue81.2%
CMYK percentages
Cyan72.5%
Magenta33.8%
Yellow0.0%
Key (black)18.8%
Color previews
#3989cf text on a black background
contrast 5.65:1
Card sample
#3989cf text on a white background
contrast 3.71:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3989cf;
Background color
Panel with #3989cf background
background-color: #3989cf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3989cf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 137, 207, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 137, 207, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3989cf; background: linear-gradient(135deg, #3989cf, #4D39CF);