#391dbb
a dark, vivid blue · warm · closest name: navy
RGB
57, 29, 187
HSL
251°, 73%, 42%
CMYK
70, 85, 0, 27
Luminance
0.0534
Every format
| HEX | #391dbb |
| RGB | rgb(57, 29, 187) |
| HSL | hsl(251, 73%, 42%) |
| CMYK | cmyk(70%, 85%, 0%, 27%) |
| LAB | lab(27.7 56.1 -76.3) |
| LCH | lch(27.7 94.8 306.3) |
| OKLCH | oklch(0.402 0.222 277.6) |
Copy-ready code
/* CSS */
color: #391dbb;
background-color: #391dbb;
/* Tailwind (arbitrary) */
class="text-[#391dbb] bg-[#391dbb]"
/* SCSS */
$brand: #391dbb;
/* SwiftUI */
Color(red: 0.224, green: 0.114, blue: 0.733)
/* Android */
Color.parseColor("#391dbb")Accessibility — WCAG contrast
Aa
#391dbb on white: 10.16:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#391dbb on black: 2.07:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green11.4%
Blue73.3%
CMYK percentages
Cyan69.5%
Magenta84.5%
Yellow0.0%
Key (black)26.7%
Color previews
#391dbb text on a black background
contrast 2.07:1
Card sample
#391dbb text on a white background
contrast 10.16:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #391dbb;
Background color
Panel with #391dbb background
background-color: #391dbb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #391dbb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 29, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 29, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #391dbb; background: linear-gradient(135deg, #391dbb, #A21DBB);