#6599df
a balanced, vivid blue · cool · closest name: steelblue
RGB
101, 153, 223
HSL
214°, 66%, 64%
CMYK
55, 31, 0, 13
Luminance
0.3088
Every format
| HEX | #6599df |
| RGB | rgb(101, 153, 223) |
| HSL | hsl(214, 66%, 64%) |
| CMYK | cmyk(55%, 31%, 0%, 13%) |
| LAB | lab(62.4 2.8 -40.8) |
| LCH | lch(62.4 40.9 273.9) |
| OKLCH | oklch(0.676 0.118 256.2) |
Copy-ready code
/* CSS */
color: #6599df;
background-color: #6599df;
/* Tailwind (arbitrary) */
class="text-[#6599df] bg-[#6599df]"
/* SCSS */
$brand: #6599df;
/* SwiftUI */
Color(red: 0.396, green: 0.600, blue: 0.875)
/* Android */
Color.parseColor("#6599df")Accessibility — WCAG contrast
Aa
#6599df on white: 2.93:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#6599df on black: 7.18:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.6%
Green60.0%
Blue87.5%
CMYK percentages
Cyan54.7%
Magenta31.4%
Yellow0.0%
Key (black)12.5%
Color previews
#6599df text on a black background
contrast 7.18:1
Card sample
#6599df text on a white background
contrast 2.93:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #6599df;
Background color
Panel with #6599df background
background-color: #6599df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #6599df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(101, 153, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(101, 153, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #6599df; background: linear-gradient(135deg, #6599df, #8265DF);