Skip to content

#3780df

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

RGB
55, 128, 223
HSL
214°, 72%, 55%
CMYK
75, 43, 0, 13
Luminance
0.2158

Every format

HEX#3780df
RGBrgb(55, 128, 223)
HSLhsl(214, 72%, 55%)
CMYKcmyk(75%, 43%, 0%, 13%)
LABlab(53.6 9.9 -54.9)
LCHlch(53.6 55.8 280.2)
OKLCHoklch(0.602 0.162 256.4)

Copy-ready code

/* CSS */
color: #3780df;
background-color: #3780df;
/* Tailwind (arbitrary) */
class="text-[#3780df] bg-[#3780df]"
/* SCSS */
$brand: #3780df;
/* SwiftUI */
Color(red: 0.216, green: 0.502, blue: 0.875)
/* Android */
Color.parseColor("#3780df")

Accessibility — WCAG contrast

Aa
#3780df on white: 3.95:1
AA ✗ fail · AA-large · AAA
Aa
#3780df on black: 5.32:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red21.6%
Green50.2%
Blue87.5%

CMYK percentages

Cyan75.3%
Magenta42.6%
Yellow0.0%
Key (black)12.5%

Color previews

#3780df text on a black background

contrast 5.32:1

Card sample

#3780df text on a white background

contrast 3.95:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #3780df;
Background color
Panel with #3780df background
background-color: #3780df;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #3780df;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(55, 128, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(55, 128, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3780df;
background: linear-gradient(135deg, #3780df, #5E37DF);

Monochromatic scale

Palettes built from #3780df

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #3780df in the Color Lab