#4239D4#4239D4

#4239D4 is a mid, highly saturated blue. Relative luminance 0.088; OKLCH L 46.7% C 0.226 H 275.7°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#4239D4
RGB	rgb(66, 57, 212)
HSL	hsl(243, 64%, 53%)
HSV	hsv(243, 73%, 83%)
CMYK	cmyk(68.9%, 73.1%, 0%, 16.9%)
CIE-LAB	lab(35.67, 50.99, -77.71)
CIE-LCH	lch(35.67, 92.95, 303.27°)
OKLab	oklab(46.73% 0.0225 -0.2246)
OKLCH	oklch(46.73% 0.226 275.7)
XYZ	xyz(15.5897, 8.8365, 63.1586)
Luminance	0.0884 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.37

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4239D4 #CBD439

analogous

#397DD4 #4239D4 #9039D4

triadic

#4239D4 #D44239 #39D442

tetradic

#4239D4 #D4397D #CBD439 #39D490

square

#4239D4 #D4397D #CBD439 #39D490

split-complementary

#4239D4 #D49039 #7DD439

monochromatic

#201A78 #2D25AB #4239D4 #726BDF #A29EEA

Accessibility & contrast

On white

7.59

#4239D4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#4239D4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4239D4

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4239D4	#FFFFFF	#000000	##FFFFFF
##4239D4	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BD9

Deuteranopia (green-blind)

#004DD1

Tritanopia (blue-blind)

#006583

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #4239d4;
/* rgb */ color: rgb(66, 57, 212);
/* oklch */ color: oklch(46.7% 0.226 275.7);

Tailwind

colors: {
  custom: {
    50: '#8a72e3',
    500: '#4239d4',
    950: '#000000',
  },
}

SCSS

$custom: #4239d4;
$custom-light: #8a72e3;
$custom-dark: #000000;

JSON

{
  "hex": "#4239d4",
  "rgb": {
    "r": 66,
    "g": 57,
    "b": 212
  },
  "hsl": {
    "h": 243.484,
    "s": 64.315,
    "l": 52.745
  },
  "oklch": {
    "l": 0.46732,
    "c": 0.22576,
    "h": 275.7
  },
  "luminance": 0.08838
}

Semantic roles & 50–950 ramp

primary

#4239D4

secondary

#D2D693

accent

#E740DE

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #4239D4

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →