#2139ef
a balanced, electric blue · warm · closest name: blue
RGB
33, 57, 239
HSL
233°, 87%, 53%
CMYK
86, 76, 0, 6
Luminance
0.0948
Every format
| HEX | #2139ef |
| RGB | rgb(33, 57, 239) |
| HSL | hsl(233, 87%, 53%) |
| CMYK | cmyk(86%, 76%, 0%, 6%) |
| LAB | lab(36.9 57.4 -91.2) |
| LCH | lch(36.9 107.7 302.2) |
| OKLCH | oklch(0.480 0.265 266.9) |
Copy-ready code
/* CSS */
color: #2139ef;
background-color: #2139ef;
/* Tailwind (arbitrary) */
class="text-[#2139ef] bg-[#2139ef]"
/* SCSS */
$brand: #2139ef;
/* SwiftUI */
Color(red: 0.129, green: 0.224, blue: 0.937)
/* Android */
Color.parseColor("#2139ef")Accessibility — WCAG contrast
Aa
#2139ef on white: 7.25:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#2139ef on black: 2.90:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green22.4%
Blue93.7%
CMYK percentages
Cyan86.2%
Magenta76.2%
Yellow0.0%
Key (black)6.3%
Color previews
#2139ef text on a black background
contrast 2.90:1
Card sample
#2139ef text on a white background
contrast 7.25:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #2139ef;
Background color
Panel with #2139ef background
background-color: #2139ef;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #2139ef;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 57, 239, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 57, 239, 0.45);
Border & gradient
Gradient panel
border: 3px solid #2139ef; background: linear-gradient(135deg, #2139ef, #9221EF);