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#577acb

a balanced, vivid blue · cool · closest name: dodgerblue

RGB
87, 122, 203
HSL
222°, 53%, 57%
CMYK
57, 40, 0, 20
Luminance
0.2026

Every format

HEX#577acb
RGBrgb(87, 122, 203)
HSLhsl(222, 53%, 57%)
CMYKcmyk(57%, 40%, 0%, 20%)
LABlab(52.1 11.8 -45.8)
LCHlch(52.1 47.3 284.4)
OKLCHoklch(0.591 0.131 265.0)

Copy-ready code

/* CSS */
color: #577acb;
background-color: #577acb;
/* Tailwind (arbitrary) */
class="text-[#577acb] bg-[#577acb]"
/* SCSS */
$brand: #577acb;
/* SwiftUI */
Color(red: 0.341, green: 0.478, blue: 0.796)
/* Android */
Color.parseColor("#577acb")

Accessibility — WCAG contrast

Aa
#577acb on white: 4.16:1
AA ✗ fail · AA-large · AAA
Aa
#577acb on black: 5.05:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red34.1%
Green47.8%
Blue79.6%

CMYK percentages

Cyan57.1%
Magenta39.9%
Yellow0.0%
Key (black)20.4%

Color previews

#577acb text on a black background

contrast 5.05:1

Card sample

#577acb text on a white background

contrast 4.16:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #577acb;
Background color
Panel with #577acb background
background-color: #577acb;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #577acb;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(87, 122, 203, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(87, 122, 203, 0.45);
Border & gradient
Gradient panel
border: 3px solid #577acb;
background: linear-gradient(135deg, #577acb, #8157CB);

Monochromatic scale

Palettes built from #577acb

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #577acb in the Color Lab