#308fdf
a balanced, vivid blue · cool · closest name: steelblue
RGB
48, 143, 223
HSL
207°, 73%, 53%
CMYK
79, 36, 0, 13
Luminance
0.2560
Every format
| HEX | #308fdf |
| RGB | rgb(48, 143, 223) |
| HSL | hsl(207, 73%, 53%) |
| CMYK | cmyk(79%, 36%, 0%, 13%) |
| LAB | lab(57.6 0.1 -48.4) |
| LCH | lch(57.6 48.4 270.1) |
| OKLCH | oklch(0.634 0.148 248.4) |
Copy-ready code
/* CSS */
color: #308fdf;
background-color: #308fdf;
/* Tailwind (arbitrary) */
class="text-[#308fdf] bg-[#308fdf]"
/* SCSS */
$brand: #308fdf;
/* SwiftUI */
Color(red: 0.188, green: 0.561, blue: 0.875)
/* Android */
Color.parseColor("#308fdf")Accessibility — WCAG contrast
Aa
#308fdf on white: 3.43:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#308fdf on black: 6.12:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red18.8%
Green56.1%
Blue87.5%
CMYK percentages
Cyan78.5%
Magenta35.9%
Yellow0.0%
Key (black)12.5%
Color previews
#308fdf text on a black background
contrast 6.12:1
Card sample
#308fdf text on a white background
contrast 3.43:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #308fdf;
Background color
Panel with #308fdf background
background-color: #308fdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #308fdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(48, 143, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(48, 143, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #308fdf; background: linear-gradient(135deg, #308fdf, #4530DF);