#4239D1#4239D1

#4239D1 is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.4% C 0.222 H 276.0°. Best body text is #FFFFFF at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#4239D1
RGB	rgb(66, 57, 209)
HSL	hsl(244, 62%, 52%)
HSV	hsv(244, 73%, 82%)
CMYK	cmyk(68.4%, 72.7%, 0%, 18%)
CIE-LAB	lab(35.37, 50.05, -76.46)
CIE-LCH	lch(35.37, 91.39, 303.20°)
OKLab	oklab(46.44% 0.0231 -0.221)
OKLCH	oklch(46.44% 0.222 276)
XYZ	xyz(15.2147, 8.6866, 61.1841)
Luminance	0.0869 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.32

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4239D1 #C8D139

analogous

#397CD1 #4239D1 #8E39D1

triadic

#4239D1 #D14239 #39D142

tetradic

#4239D1 #D1397C #C8D139 #39D18E

square

#4239D1 #D1397C #C8D139 #39D18E

split-complementary

#4239D1 #D18E39 #7CD139

monochromatic

#201B75 #2E27A6 #4239D1 #716BDD #A19CE8

Accessibility & contrast

On white

7.67

#4239D1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#4239D1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4239D1

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4239D1	#FFFFFF	#000000	##FFFFFF
##4239D1	1.00	7.67	2.74	7.67
#FFFFFF	7.67	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AD5

Deuteranopia (green-blind)

#004CCE

Tritanopia (blue-blind)

#006482

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #4239d1;
/* rgb */ color: rgb(66, 57, 209);
/* oklch */ color: oklch(46.4% 0.222 276.0);

Tailwind

colors: {
  custom: {
    50: '#8a71e0',
    500: '#4239d1',
    950: '#000000',
  },
}

SCSS

$custom: #4239d1;
$custom-light: #8a71e0;
$custom-dark: #000000;

JSON

{
  "hex": "#4239d1",
  "rgb": {
    "r": 66,
    "g": 57,
    "b": 209
  },
  "hsl": {
    "h": 243.553,
    "s": 62.295,
    "l": 52.157
  },
  "oklch": {
    "l": 0.46436,
    "c": 0.22219,
    "h": 276
  },
  "luminance": 0.08688
}

Semantic roles & 50–950 ramp

primary

#4239D1

secondary

#D0D492

accent

#E542DC

background

#F9F7FD

surface

#F2EDFB

border

#CCC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4239D1

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

Preview Lab → · Contrast checker → · Palette generator →