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#403df3

a balanced, electric blue · warm · closest name: blue

RGB
64, 61, 243
HSL
241°, 88%, 60%
CMYK
74, 75, 0, 5
Luminance
0.1090

Every format

HEX#403df3
RGBrgb(64, 61, 243)
HSLhsl(241, 88%, 60%)
CMYKcmyk(74%, 75%, 0%, 5%)
LABlab(39.4 58.4 -89.2)
LCHlch(39.4 106.6 303.2)
OKLCHoklch(0.503 0.259 272.7)

Copy-ready code

/* CSS */
color: #403df3;
background-color: #403df3;
/* Tailwind (arbitrary) */
class="text-[#403df3] bg-[#403df3]"
/* SCSS */
$brand: #403df3;
/* SwiftUI */
Color(red: 0.251, green: 0.239, blue: 0.953)
/* Android */
Color.parseColor("#403df3")

Accessibility — WCAG contrast

Aa
#403df3 on white: 6.60:1
AA ✓ pass · AA-large · AAA
Aa
#403df3 on black: 3.18:1
AA ✗ fail · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red25.1%
Green23.9%
Blue95.3%

CMYK percentages

Cyan73.7%
Magenta74.9%
Yellow0.0%
Key (black)4.7%

Color previews

#403df3 text on a black background

contrast 3.18:1

Card sample

#403df3 text on a white background

contrast 6.60:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #403df3;
Background color
Panel with #403df3 background
background-color: #403df3;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #403df3;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(64, 61, 243, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 61, 243, 0.45);
Border & gradient
Gradient panel
border: 3px solid #403df3;
background: linear-gradient(135deg, #403df3, #B93DF3);

Monochromatic scale

Palettes built from #403df3

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #403df3 in the Color Lab