#637fdf
a balanced, vivid blue · warm · closest name: dodgerblue
RGB
99, 127, 223
HSL
227°, 66%, 63%
CMYK
56, 43, 0, 13
Luminance
0.2316
Every format
| HEX | #637fdf |
| RGB | rgb(99, 127, 223) |
| HSL | hsl(227, 66%, 63%) |
| CMYK | cmyk(56%, 43%, 0%, 13%) |
| LAB | lab(55.2 17.7 -52.1) |
| LCH | lch(55.2 55.1 288.8) |
| OKLCH | oklch(0.621 0.148 269.5) |
Copy-ready code
/* CSS */
color: #637fdf;
background-color: #637fdf;
/* Tailwind (arbitrary) */
class="text-[#637fdf] bg-[#637fdf]"
/* SCSS */
$brand: #637fdf;
/* SwiftUI */
Color(red: 0.388, green: 0.498, blue: 0.875)
/* Android */
Color.parseColor("#637fdf")Accessibility — WCAG contrast
Aa
#637fdf on white: 3.73:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#637fdf on black: 5.63:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red38.8%
Green49.8%
Blue87.5%
CMYK percentages
Cyan55.6%
Magenta43.0%
Yellow0.0%
Key (black)12.5%
Color previews
#637fdf text on a black background
contrast 5.63:1
Card sample
#637fdf text on a white background
contrast 3.73:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #637fdf;
Background color
Panel with #637fdf background
background-color: #637fdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #637fdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(99, 127, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(99, 127, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #637fdf; background: linear-gradient(135deg, #637fdf, #9A63DF);