#256adf
a balanced, vivid blue · cool · closest name: royalblue
RGB
37, 106, 223
HSL
218°, 74%, 51%
CMYK
83, 53, 0, 13
Luminance
0.1603
Every format
| HEX | #256adf |
| RGB | rgb(37, 106, 223) |
| HSL | hsl(218, 74%, 51%) |
| CMYK | cmyk(83%, 53%, 0%, 13%) |
| LAB | lab(47.0 21.9 -65.5) |
| LCH | lch(47.0 69.1 288.5) |
| OKLCH | oklch(0.550 0.192 260.5) |
Copy-ready code
/* CSS */
color: #256adf;
background-color: #256adf;
/* Tailwind (arbitrary) */
class="text-[#256adf] bg-[#256adf]"
/* SCSS */
$brand: #256adf;
/* SwiftUI */
Color(red: 0.145, green: 0.416, blue: 0.875)
/* Android */
Color.parseColor("#256adf")Accessibility — WCAG contrast
Aa
#256adf on white: 4.99:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#256adf on black: 4.21:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red14.5%
Green41.6%
Blue87.5%
CMYK percentages
Cyan83.4%
Magenta52.5%
Yellow0.0%
Key (black)12.5%
Color previews
#256adf text on a black background
contrast 4.21:1
Card sample
#256adf text on a white background
contrast 4.99:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #256adf;
Background color
Panel with #256adf background
background-color: #256adf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #256adf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(37, 106, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(37, 106, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #256adf; background: linear-gradient(135deg, #256adf, #5C25DF);