#151df3
a balanced, electric blue · warm · closest name: blue
RGB
21, 29, 243
HSL
238°, 90%, 52%
CMYK
91, 88, 0, 5
Luminance
0.0751
Every format
| HEX | #151df3 |
| RGB | rgb(21, 29, 243) |
| HSL | hsl(238, 90%, 52%) |
| CMYK | cmyk(91%, 88%, 0%, 5%) |
| LAB | lab(32.9 70.3 -100.0) |
| LCH | lch(32.9 122.3 305.1) |
| OKLCH | oklch(0.453 0.290 265.9) |
Copy-ready code
/* CSS */
color: #151df3;
background-color: #151df3;
/* Tailwind (arbitrary) */
class="text-[#151df3] bg-[#151df3]"
/* SCSS */
$brand: #151df3;
/* SwiftUI */
Color(red: 0.082, green: 0.114, blue: 0.953)
/* Android */
Color.parseColor("#151df3")Accessibility — WCAG contrast
Aa
#151df3 on white: 8.39:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#151df3 on black: 2.50:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red8.2%
Green11.4%
Blue95.3%
CMYK percentages
Cyan91.4%
Magenta88.1%
Yellow0.0%
Key (black)4.7%
Color previews
#151df3 text on a black background
contrast 2.50:1
Card sample
#151df3 text on a white background
contrast 8.39:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #151df3;
Background color
Panel with #151df3 background
background-color: #151df3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #151df3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(21, 29, 243, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(21, 29, 243, 0.45);
Border & gradient
Gradient panel
border: 3px solid #151df3; background: linear-gradient(135deg, #151df3, #A115F3);