#284daf
a dark, vivid blue · cool · closest name: royalblue
RGB
40, 77, 175
HSL
224°, 63%, 42%
CMYK
77, 56, 0, 31
Luminance
0.0885
Every format
| HEX | #284daf |
| RGB | rgb(40, 77, 175) |
| HSL | hsl(224, 63%, 42%) |
| CMYK | cmyk(77%, 56%, 0%, 31%) |
| LAB | lab(35.7 22.8 -56.1) |
| LCH | lch(35.7 60.5 292.1) |
| OKLCH | oklch(0.454 0.162 264.9) |
Copy-ready code
/* CSS */
color: #284daf;
background-color: #284daf;
/* Tailwind (arbitrary) */
class="text-[#284daf] bg-[#284daf]"
/* SCSS */
$brand: #284daf;
/* SwiftUI */
Color(red: 0.157, green: 0.302, blue: 0.686)
/* Android */
Color.parseColor("#284daf")Accessibility — WCAG contrast
Aa
#284daf on white: 7.58:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#284daf on black: 2.77:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green30.2%
Blue68.6%
CMYK percentages
Cyan77.1%
Magenta56.0%
Yellow0.0%
Key (black)31.4%
Color previews
#284daf text on a black background
contrast 2.77:1
Card sample
#284daf text on a white background
contrast 7.58:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #284daf;
Background color
Panel with #284daf background
background-color: #284daf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #284daf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 77, 175, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 77, 175, 0.45);
Border & gradient
Gradient panel
border: 3px solid #284daf; background: linear-gradient(135deg, #284daf, #5D28AF);