#2f57af
a dark, vivid blue · cool · closest name: royalblue
RGB
47, 87, 175
HSL
221°, 58%, 44%
CMYK
73, 50, 0, 31
Luminance
0.1052
Every format
| HEX | #2f57af |
| RGB | rgb(47, 87, 175) |
| HSL | hsl(221, 58%, 44%) |
| CMYK | cmyk(73%, 50%, 0%, 31%) |
| LAB | lab(38.8 17.0 -51.1) |
| LCH | lch(38.8 53.9 288.4) |
| OKLCH | oklch(0.478 0.148 263.5) |
Copy-ready code
/* CSS */
color: #2f57af;
background-color: #2f57af;
/* Tailwind (arbitrary) */
class="text-[#2f57af] bg-[#2f57af]"
/* SCSS */
$brand: #2f57af;
/* SwiftUI */
Color(red: 0.184, green: 0.341, blue: 0.686)
/* Android */
Color.parseColor("#2f57af")Accessibility — WCAG contrast
Aa
#2f57af on white: 6.77:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#2f57af on black: 3.10:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red18.4%
Green34.1%
Blue68.6%
CMYK percentages
Cyan73.1%
Magenta50.3%
Yellow0.0%
Key (black)31.4%
Color previews
#2f57af text on a black background
contrast 3.10:1
Card sample
#2f57af text on a white background
contrast 6.77:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #2f57af;
Background color
Panel with #2f57af background
background-color: #2f57af;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #2f57af;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(47, 87, 175, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(47, 87, 175, 0.45);
Border & gradient
Gradient panel
border: 3px solid #2f57af; background: linear-gradient(135deg, #2f57af, #5C2FAF);