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#2a3fdf

a balanced, vivid blue · warm · closest name: slateblue

RGB
42, 63, 223
HSL
233°, 74%, 52%
CMYK
81, 72, 0, 13
Luminance
0.0937

Every format

HEX#2a3fdf
RGBrgb(42, 63, 223)
HSLhsl(233, 74%, 52%)
CMYKcmyk(81%, 72%, 0%, 13%)
LABlab(36.7 49.2 -82.4)
LCHlch(36.7 96.0 300.9)
OKLCHoklch(0.474 0.239 268.3)

Copy-ready code

/* CSS */
color: #2a3fdf;
background-color: #2a3fdf;
/* Tailwind (arbitrary) */
class="text-[#2a3fdf] bg-[#2a3fdf]"
/* SCSS */
$brand: #2a3fdf;
/* SwiftUI */
Color(red: 0.165, green: 0.247, blue: 0.875)
/* Android */
Color.parseColor("#2a3fdf")

Accessibility — WCAG contrast

Aa
#2a3fdf on white: 7.30:1
AA ✓ pass · AA-large · AAA
Aa
#2a3fdf on black: 2.87:1
AA ✗ fail · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red16.5%
Green24.7%
Blue87.5%

CMYK percentages

Cyan81.2%
Magenta71.7%
Yellow0.0%
Key (black)12.5%

Color previews

#2a3fdf text on a black background

contrast 2.87:1

Card sample

#2a3fdf text on a white background

contrast 7.30:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #2a3fdf;
Background color
Panel with #2a3fdf background
background-color: #2a3fdf;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #2a3fdf;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(42, 63, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(42, 63, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #2a3fdf;
background: linear-gradient(135deg, #2a3fdf, #8E2ADF);

Monochromatic scale

Palettes built from #2a3fdf

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #2a3fdf in the Color Lab