#284da4
a dark, vivid blue · cool · closest name: royalblue
RGB
40, 77, 164
HSL
222°, 61%, 40%
CMYK
76, 53, 0, 36
Luminance
0.0844
Every format
| HEX | #284da4 |
| RGB | rgb(40, 77, 164) |
| HSL | hsl(222, 61%, 40%) |
| CMYK | cmyk(76%, 53%, 0%, 36%) |
| LAB | lab(34.9 18.5 -50.8) |
| LCH | lch(34.9 54.1 290.0) |
| OKLCH | oklch(0.445 0.147 264.0) |
Copy-ready code
/* CSS */
color: #284da4;
background-color: #284da4;
/* Tailwind (arbitrary) */
class="text-[#284da4] bg-[#284da4]"
/* SCSS */
$brand: #284da4;
/* SwiftUI */
Color(red: 0.157, green: 0.302, blue: 0.643)
/* Android */
Color.parseColor("#284da4")Accessibility — WCAG contrast
Aa
#284da4 on white: 7.81:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#284da4 on black: 2.69:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green30.2%
Blue64.3%
CMYK percentages
Cyan75.6%
Magenta53.0%
Yellow0.0%
Key (black)35.7%
Color previews
#284da4 text on a black background
contrast 2.69:1
Card sample
#284da4 text on a white background
contrast 7.81:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #284da4;
Background color
Panel with #284da4 background
background-color: #284da4;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #284da4;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 77, 164, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 77, 164, 0.45);
Border & gradient
Gradient panel
border: 3px solid #284da4; background: linear-gradient(135deg, #284da4, #5628A4);