#4289eb
a balanced, electric blue · cool · closest name: dodgerblue
RGB
66, 137, 235
HSL
215°, 81%, 59%
CMYK
72, 42, 0, 8
Luminance
0.2505
Every format
| HEX | #4289eb |
| RGB | rgb(66, 137, 235) |
| HSL | hsl(215, 81%, 59%) |
| CMYK | cmyk(72%, 42%, 0%, 8%) |
| LAB | lab(57.1 10.2 -55.9) |
| LCH | lch(57.1 56.8 280.3) |
| OKLCH | oklch(0.633 0.164 257.2) |
Copy-ready code
/* CSS */
color: #4289eb;
background-color: #4289eb;
/* Tailwind (arbitrary) */
class="text-[#4289eb] bg-[#4289eb]"
/* SCSS */
$brand: #4289eb;
/* SwiftUI */
Color(red: 0.259, green: 0.537, blue: 0.922)
/* Android */
Color.parseColor("#4289eb")Accessibility — WCAG contrast
Aa
#4289eb on white: 3.49:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#4289eb on black: 6.01:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green53.7%
Blue92.2%
CMYK percentages
Cyan71.9%
Magenta41.7%
Yellow0.0%
Key (black)7.8%
Color previews
#4289eb text on a black background
contrast 6.01:1
Card sample
#4289eb text on a white background
contrast 3.49:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #4289eb;
Background color
Panel with #4289eb background
background-color: #4289eb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #4289eb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 137, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 137, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4289eb; background: linear-gradient(135deg, #4289eb, #6C42EB);