#646bdf
a balanced, vivid blue · warm · closest name: royalblue
RGB
100, 107, 223
HSL
237°, 66%, 63%
CMYK
55, 52, 0, 13
Luminance
0.1855
Every format
| HEX | #646bdf |
| RGB | rgb(100, 107, 223) |
| HSL | hsl(237, 66%, 63%) |
| CMYK | cmyk(55%, 52%, 0%, 13%) |
| LAB | lab(50.2 30.1 -60.3) |
| LCH | lch(50.2 67.4 296.5) |
| OKLCH | oklch(0.582 0.174 277.0) |
Copy-ready code
/* CSS */
color: #646bdf;
background-color: #646bdf;
/* Tailwind (arbitrary) */
class="text-[#646bdf] bg-[#646bdf]"
/* SCSS */
$brand: #646bdf;
/* SwiftUI */
Color(red: 0.392, green: 0.420, blue: 0.875)
/* Android */
Color.parseColor("#646bdf")Accessibility — WCAG contrast
Aa
#646bdf on white: 4.46:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#646bdf on black: 4.71:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green42.0%
Blue87.5%
CMYK percentages
Cyan55.2%
Magenta52.0%
Yellow0.0%
Key (black)12.5%
Color previews
#646bdf text on a black background
contrast 4.71:1
Card sample
#646bdf text on a white background
contrast 4.46:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #646bdf;
Background color
Panel with #646bdf background
background-color: #646bdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #646bdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 107, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 107, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #646bdf; background: linear-gradient(135deg, #646bdf, #AF64DF);