#5166bf
a balanced, vivid blue · warm · closest name: royalblue
RGB
81, 102, 191
HSL
229°, 46%, 53%
CMYK
58, 47, 0, 25
Luminance
0.1501
Every format
| HEX | #5166bf |
| RGB | rgb(81, 102, 191) |
| HSL | hsl(229, 46%, 53%) |
| CMYK | cmyk(58%, 47%, 0%, 25%) |
| LAB | lab(45.6 19.0 -49.3) |
| LCH | lch(45.6 52.8 291.0) |
| OKLCH | oklch(0.538 0.141 271.0) |
Copy-ready code
/* CSS */
color: #5166bf;
background-color: #5166bf;
/* Tailwind (arbitrary) */
class="text-[#5166bf] bg-[#5166bf]"
/* SCSS */
$brand: #5166bf;
/* SwiftUI */
Color(red: 0.318, green: 0.400, blue: 0.749)
/* Android */
Color.parseColor("#5166bf")Accessibility — WCAG contrast
Aa
#5166bf on white: 5.25:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#5166bf on black: 4.00:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green40.0%
Blue74.9%
CMYK percentages
Cyan57.6%
Magenta46.6%
Yellow0.0%
Key (black)25.1%
Color previews
#5166bf text on a black background
contrast 4.00:1
Card sample
#5166bf text on a white background
contrast 5.25:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #5166bf;
Background color
Panel with #5166bf background
background-color: #5166bf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #5166bf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 102, 191, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 102, 191, 0.45);
Border & gradient
Gradient panel
border: 3px solid #5166bf; background: linear-gradient(135deg, #5166bf, #8551BF);