#283baf
a dark, vivid blue · warm · closest name: slateblue
RGB
40, 59, 175
HSL
232°, 63%, 42%
CMYK
77, 66, 0, 31
Luminance
0.0667
Every format
| HEX | #283baf |
| RGB | rgb(40, 59, 175) |
| HSL | hsl(232, 63%, 42%) |
| CMYK | cmyk(77%, 66%, 0%, 31%) |
| LAB | lab(31.1 34.6 -63.6) |
| LCH | lch(31.1 72.5 298.5) |
| OKLCH | oklch(0.419 0.184 269.2) |
Copy-ready code
/* CSS */
color: #283baf;
background-color: #283baf;
/* Tailwind (arbitrary) */
class="text-[#283baf] bg-[#283baf]"
/* SCSS */
$brand: #283baf;
/* SwiftUI */
Color(red: 0.157, green: 0.231, blue: 0.686)
/* Android */
Color.parseColor("#283baf")Accessibility — WCAG contrast
Aa
#283baf on white: 8.99:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#283baf on black: 2.33:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green23.1%
Blue68.6%
CMYK percentages
Cyan77.1%
Magenta66.3%
Yellow0.0%
Key (black)31.4%
Color previews
#283baf text on a black background
contrast 2.33:1
Card sample
#283baf text on a white background
contrast 8.99:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #283baf;
Background color
Panel with #283baf background
background-color: #283baf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #283baf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 59, 175, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 59, 175, 0.45);
Border & gradient
Gradient panel
border: 3px solid #283baf; background: linear-gradient(135deg, #283baf, #6F28AF);