#311dbb
a dark, vivid blue · warm · closest name: navy
RGB
49, 29, 187
HSL
248°, 73%, 42%
CMYK
74, 85, 0, 27
Luminance
0.0512
Every format
| HEX | #311dbb |
| RGB | rgb(49, 29, 187) |
| HSL | hsl(248, 73%, 42%) |
| CMYK | cmyk(74%, 85%, 0%, 27%) |
| LAB | lab(27.1 55.6 -77.3) |
| LCH | lch(27.1 95.3 305.7) |
| OKLCH | oklch(0.396 0.224 274.6) |
Copy-ready code
/* CSS */
color: #311dbb;
background-color: #311dbb;
/* Tailwind (arbitrary) */
class="text-[#311dbb] bg-[#311dbb]"
/* SCSS */
$brand: #311dbb;
/* SwiftUI */
Color(red: 0.192, green: 0.114, blue: 0.733)
/* Android */
Color.parseColor("#311dbb")Accessibility — WCAG contrast
Aa
#311dbb on white: 10.38:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#311dbb on black: 2.02:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red19.2%
Green11.4%
Blue73.3%
CMYK percentages
Cyan73.8%
Magenta84.5%
Yellow0.0%
Key (black)26.7%
Color previews
#311dbb text on a black background
contrast 2.02:1
Card sample
#311dbb text on a white background
contrast 10.38:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #311dbb;
Background color
Panel with #311dbb background
background-color: #311dbb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #311dbb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(49, 29, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(49, 29, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #311dbb; background: linear-gradient(135deg, #311dbb, #9A1DBB);