#4239C4#4239C4

#4239C4 is a mid, highly saturated blue. Relative luminance 0.081; OKLCH L 45.2% C 0.206 H 277.1°. Best body text is #FFFFFF at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#4239C4
RGB	rgb(66, 57, 196)
HSL	hsl(244, 55%, 50%)
HSV	hsv(244, 71%, 77%)
CMYK	cmyk(66.3%, 70.9%, 0%, 23.1%)
CIE-LAB	lab(34.13, 45.91, -70.95)
CIE-LCH	lch(34.13, 84.51, 302.91°)
OKLab	oklab(45.17% 0.0254 -0.2049)
OKLCH	oklch(45.17% 0.206 277.1)
XYZ	xyz(13.6705, 8.0688, 53.0509)
Luminance	0.0807 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4239C4 #BBC439

analogous

#3976C4 #4239C4 #8839C4

triadic

#4239C4 #C44239 #39C442

tetradic

#4239C4 #C43976 #BBC439 #39C488

square

#4239C4 #C43976 #BBC439 #39C488

split-complementary

#4239C4 #C48839 #76C439

monochromatic

#221D65 #322B95 #4239C4 #6E67D3 #9C97E1

Accessibility & contrast

On white

8.03

#4239C4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#4239C4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4239C4

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4239C4	#FFFFFF	#000000	##FFFFFF
##4239C4	1.00	8.03	2.61	8.03
#FFFFFF	8.03	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C8

Deuteranopia (green-blind)

#004AC1

Tritanopia (blue-blind)

#005F7A

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #4239c4;
/* rgb */ color: rgb(66, 57, 196);
/* oklch */ color: oklch(45.2% 0.206 277.1);

Tailwind

colors: {
  custom: {
    50: '#8771d7',
    500: '#4239c4',
    950: '#000000',
  },
}

SCSS

$custom: #4239c4;
$custom-light: #8771d7;
$custom-dark: #000000;

JSON

{
  "hex": "#4239c4",
  "rgb": {
    "r": 66,
    "g": 57,
    "b": 196
  },
  "hsl": {
    "h": 243.885,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.4517,
    "c": 0.20648,
    "h": 277.1
  },
  "luminance": 0.0807
}

Semantic roles & 50–950 ramp

primary

#4239C4

secondary

#C8CC8D

accent

#DE4AD5

background

#F9F6FD

surface

#F1ECFA

border

#CBC7D3

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4239C4

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

Preview Lab → · Contrast checker → · Palette generator →