#2139bb
a dark, vivid blue · warm · closest name: slateblue
RGB
33, 57, 187
HSL
231°, 70%, 43%
CMYK
82, 70, 0, 27
Luminance
0.0684
Every format
| HEX | #2139bb |
| RGB | rgb(33, 57, 187) |
| HSL | hsl(231, 70%, 43%) |
| CMYK | cmyk(82%, 70%, 0%, 27%) |
| LAB | lab(31.4 39.6 -70.2) |
| LCH | lch(31.4 80.6 299.5) |
| OKLCH | oklch(0.425 0.203 267.5) |
Copy-ready code
/* CSS */
color: #2139bb;
background-color: #2139bb;
/* Tailwind (arbitrary) */
class="text-[#2139bb] bg-[#2139bb]"
/* SCSS */
$brand: #2139bb;
/* SwiftUI */
Color(red: 0.129, green: 0.224, blue: 0.733)
/* Android */
Color.parseColor("#2139bb")Accessibility — WCAG contrast
Aa
#2139bb on white: 8.87:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#2139bb on black: 2.37:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green22.4%
Blue73.3%
CMYK percentages
Cyan82.4%
Magenta69.5%
Yellow0.0%
Key (black)26.7%
Color previews
#2139bb text on a black background
contrast 2.37:1
Card sample
#2139bb text on a white background
contrast 8.87:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #2139bb;
Background color
Panel with #2139bb background
background-color: #2139bb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #2139bb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 57, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 57, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #2139bb; background: linear-gradient(135deg, #2139bb, #6F21BB);