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#4038bc

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

RGB
64, 56, 188
HSL
244°, 54%, 48%
CMYK
66, 70, 0, 26
Luminance
0.0755

Every format

HEX#4038bc
RGBrgb(64, 56, 188)
HSLhsl(244, 54%, 48%)
CMYKcmyk(66%, 70%, 0%, 26%)
LABlab(33.0 43.7 -68.1)
LCHlch(33.0 80.9 302.7)
OKLCHoklch(0.441 0.198 277.2)

Copy-ready code

/* CSS */
color: #4038bc;
background-color: #4038bc;
/* Tailwind (arbitrary) */
class="text-[#4038bc] bg-[#4038bc]"
/* SCSS */
$brand: #4038bc;
/* SwiftUI */
Color(red: 0.251, green: 0.220, blue: 0.737)
/* Android */
Color.parseColor("#4038bc")

Accessibility — WCAG contrast

Aa
#4038bc on white: 8.37:1
AA ✓ pass · AA-large · AAA
Aa
#4038bc on black: 2.51:1
AA ✗ fail · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red25.1%
Green22.0%
Blue73.7%

CMYK percentages

Cyan66.0%
Magenta70.2%
Yellow0.0%
Key (black)26.3%

Color previews

#4038bc text on a black background

contrast 2.51:1

Card sample

#4038bc text on a white background

contrast 8.37:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #4038bc;
Background color
Panel with #4038bc background
background-color: #4038bc;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #4038bc;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(64, 56, 188, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 56, 188, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4038bc;
background: linear-gradient(135deg, #4038bc, #9838BC);

Monochromatic scale

Palettes built from #4038bc

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #4038bc in the Color Lab