#3099df
a balanced, vivid blue · cool · closest name: steelblue
RGB
48, 153, 223
HSL
204°, 73%, 53%
CMYK
79, 31, 0, 13
Luminance
0.2874
Every format
| HEX | #3099df |
| RGB | rgb(48, 153, 223) |
| HSL | hsl(204, 73%, 53%) |
| CMYK | cmyk(79%, 31%, 0%, 13%) |
| LAB | lab(60.5 -5.7 -43.9) |
| LCH | lch(60.5 44.2 262.6) |
| OKLCH | oklch(0.656 0.140 243.0) |
Copy-ready code
/* CSS */
color: #3099df;
background-color: #3099df;
/* Tailwind (arbitrary) */
class="text-[#3099df] bg-[#3099df]"
/* SCSS */
$brand: #3099df;
/* SwiftUI */
Color(red: 0.188, green: 0.600, blue: 0.875)
/* Android */
Color.parseColor("#3099df")Accessibility — WCAG contrast
Aa
#3099df on white: 3.11:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3099df on black: 6.75:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red18.8%
Green60.0%
Blue87.5%
CMYK percentages
Cyan78.5%
Magenta31.4%
Yellow0.0%
Key (black)12.5%
Color previews
#3099df text on a black background
contrast 6.75:1
Card sample
#3099df text on a white background
contrast 3.11:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3099df;
Background color
Panel with #3099df background
background-color: #3099df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3099df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(48, 153, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(48, 153, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3099df; background: linear-gradient(135deg, #3099df, #3C30DF);