#309cbb
a balanced, vivid cyan · cool · closest name: steelblue
RGB
48, 156, 187
HSL
193°, 59%, 46%
CMYK
74, 17, 0, 27
Luminance
0.2799
Every format
| HEX | #309cbb |
| RGB | rgb(48, 156, 187) |
| HSL | hsl(193, 59%, 46%) |
| CMYK | cmyk(74%, 17%, 0%, 27%) |
| LAB | lab(59.9 -19.7 -24.7) |
| LCH | lch(59.9 31.6 231.4) |
| OKLCH | oklch(0.646 0.105 221.4) |
Copy-ready code
/* CSS */
color: #309cbb;
background-color: #309cbb;
/* Tailwind (arbitrary) */
class="text-[#309cbb] bg-[#309cbb]"
/* SCSS */
$brand: #309cbb;
/* SwiftUI */
Color(red: 0.188, green: 0.612, blue: 0.733)
/* Android */
Color.parseColor("#309cbb")Accessibility — WCAG contrast
Aa
#309cbb on white: 3.18:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#309cbb on black: 6.60:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red18.8%
Green61.2%
Blue73.3%
CMYK percentages
Cyan74.3%
Magenta16.6%
Yellow0.0%
Key (black)26.7%
Color previews
#309cbb text on a black background
contrast 6.60:1
Card sample
#309cbb text on a white background
contrast 3.18:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #309cbb;
Background color
Panel with #309cbb background
background-color: #309cbb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #309cbb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(48, 156, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(48, 156, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #309cbb; background: linear-gradient(135deg, #309cbb, #303FBB);