#157dfb
a balanced, electric blue · cool · closest name: royalblue
RGB
21, 125, 251
HSL
213°, 97%, 53%
CMYK
92, 50, 0, 2
Luminance
0.2179
Every format
| HEX | #157dfb |
| RGB | rgb(21, 125, 251) |
| HSL | hsl(213, 97%, 53%) |
| CMYK | cmyk(92%, 50%, 0%, 2%) |
| LAB | lab(53.8 19.7 -70.2) |
| LCH | lch(53.8 72.9 285.7) |
| OKLCH | oklch(0.608 0.208 257.2) |
Copy-ready code
/* CSS */
color: #157dfb;
background-color: #157dfb;
/* Tailwind (arbitrary) */
class="text-[#157dfb] bg-[#157dfb]"
/* SCSS */
$brand: #157dfb;
/* SwiftUI */
Color(red: 0.082, green: 0.490, blue: 0.984)
/* Android */
Color.parseColor("#157dfb")Accessibility — WCAG contrast
Aa
#157dfb on white: 3.92:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#157dfb on black: 5.36:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red8.2%
Green49.0%
Blue98.4%
CMYK percentages
Cyan91.6%
Magenta50.2%
Yellow0.0%
Key (black)1.6%
Color previews
#157dfb text on a black background
contrast 5.36:1
Card sample
#157dfb text on a white background
contrast 3.92:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #157dfb;
Background color
Panel with #157dfb background
background-color: #157dfb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #157dfb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(21, 125, 251, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(21, 125, 251, 0.45);
Border & gradient
Gradient panel
border: 3px solid #157dfb; background: linear-gradient(135deg, #157dfb, #4615FB);