#331bcb
a balanced, electric blue · warm · closest name: navy
RGB
51, 27, 203
HSL
248°, 77%, 45%
CMYK
75, 87, 0, 20
Luminance
0.0580
Every format
| HEX | #331bcb |
| RGB | rgb(51, 27, 203) |
| HSL | hsl(248, 77%, 45%) |
| CMYK | cmyk(75%, 87%, 0%, 20%) |
| LAB | lab(28.9 61.0 -83.7) |
| LCH | lch(28.9 103.6 306.1) |
| OKLCH | oklch(0.415 0.243 273.9) |
Copy-ready code
/* CSS */
color: #331bcb;
background-color: #331bcb;
/* Tailwind (arbitrary) */
class="text-[#331bcb] bg-[#331bcb]"
/* SCSS */
$brand: #331bcb;
/* SwiftUI */
Color(red: 0.200, green: 0.106, blue: 0.796)
/* Android */
Color.parseColor("#331bcb")Accessibility — WCAG contrast
Aa
#331bcb on white: 9.72:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#331bcb on black: 2.16:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green10.6%
Blue79.6%
CMYK percentages
Cyan74.9%
Magenta86.7%
Yellow0.0%
Key (black)20.4%
Color previews
#331bcb text on a black background
contrast 2.16:1
Card sample
#331bcb text on a white background
contrast 9.72:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #331bcb;
Background color
Panel with #331bcb background
background-color: #331bcb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #331bcb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 27, 203, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 27, 203, 0.45);
Border & gradient
Gradient panel
border: 3px solid #331bcb; background: linear-gradient(135deg, #331bcb, #A81BCB);