#555bcc
a balanced, vivid blue · warm · closest name: slateblue
RGB
85, 91, 204
HSL
237°, 54%, 57%
CMYK
58, 55, 0, 20
Luminance
0.1377
Every format
| HEX | #555bcc |
| RGB | rgb(85, 91, 204) |
| HSL | hsl(237, 54%, 57%) |
| CMYK | cmyk(58%, 55%, 0%, 20%) |
| LAB | lab(43.9 30.9 -59.6) |
| LCH | lch(43.9 67.2 297.4) |
| OKLCH | oklch(0.529 0.172 276.5) |
Copy-ready code
/* CSS */
color: #555bcc;
background-color: #555bcc;
/* Tailwind (arbitrary) */
class="text-[#555bcc] bg-[#555bcc]"
/* SCSS */
$brand: #555bcc;
/* SwiftUI */
Color(red: 0.333, green: 0.357, blue: 0.800)
/* Android */
Color.parseColor("#555bcc")Accessibility — WCAG contrast
Aa
#555bcc on white: 5.59:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#555bcc on black: 3.75:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red33.3%
Green35.7%
Blue80.0%
CMYK percentages
Cyan58.3%
Magenta55.4%
Yellow0.0%
Key (black)20.0%
Color previews
#555bcc text on a black background
contrast 3.75:1
Card sample
#555bcc text on a white background
contrast 5.59:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #555bcc;
Background color
Panel with #555bcc background
background-color: #555bcc;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #555bcc;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(85, 91, 204, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(85, 91, 204, 0.45);
Border & gradient
Gradient panel
border: 3px solid #555bcc; background: linear-gradient(135deg, #555bcc, #9E55CC);