#2571df
a balanced, vivid blue · cool · closest name: royalblue
RGB
37, 113, 223
HSL
216°, 74%, 51%
CMYK
83, 49, 0, 13
Luminance
0.1753
Every format
| HEX | #2571df |
| RGB | rgb(37, 113, 223) |
| HSL | hsl(216, 74%, 51%) |
| CMYK | cmyk(83%, 49%, 0%, 13%) |
| LAB | lab(48.9 17.5 -62.4) |
| LCH | lch(48.9 64.8 285.6) |
| OKLCH | oklch(0.565 0.183 258.6) |
Copy-ready code
/* CSS */
color: #2571df;
background-color: #2571df;
/* Tailwind (arbitrary) */
class="text-[#2571df] bg-[#2571df]"
/* SCSS */
$brand: #2571df;
/* SwiftUI */
Color(red: 0.145, green: 0.443, blue: 0.875)
/* Android */
Color.parseColor("#2571df")Accessibility — WCAG contrast
Aa
#2571df on white: 4.66:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#2571df on black: 4.51:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red14.5%
Green44.3%
Blue87.5%
CMYK percentages
Cyan83.4%
Magenta49.3%
Yellow0.0%
Key (black)12.5%
Color previews
#2571df text on a black background
contrast 4.51:1
Card sample
#2571df text on a white background
contrast 4.66:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #2571df;
Background color
Panel with #2571df background
background-color: #2571df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #2571df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(37, 113, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(37, 113, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #2571df; background: linear-gradient(135deg, #2571df, #5525DF);