#4042C4#4042C4

#4042C4 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 46.4% C 0.197 H 274.9°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#4042C4
RGB	rgb(64, 66, 196)
HSL	hsl(239, 53%, 51%)
HSV	hsv(239, 67%, 77%)
CMYK	cmyk(67.3%, 66.3%, 0%, 23.1%)
CIE-LAB	lab(35.93, 40.38, -68.00)
CIE-LCH	lch(35.93, 79.08, 300.70°)
OKLab	oklab(46.43% 0.0168 -0.1963)
OKLCH	oklch(46.43% 0.197 274.9)
XYZ	xyz(14.0231, 8.9707, 53.2064)
Luminance	0.0897 (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

#4042C4 #C4C240

analogous

#4084C4 #4042C4 #8040C4

triadic

#4042C4 #C44042 #42C440

tetradic

#4042C4 #C44084 #C4C240 #40C480

square

#4042C4 #C44084 #C4C240 #40C480

split-complementary

#4042C4 #C48040 #84C440

monochromatic

#202269 #2F3198 #4042C4 #6F70D2 #9E9FE1

Accessibility & contrast

On white

7.52

#4042C4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#4042C4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4042C4

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4042C4	#FFFFFF	#000000	##FFFFFF
##4042C4	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC8

Deuteranopia (green-blind)

#004EC2

Tritanopia (blue-blind)

#00647D

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #4042c4;
/* rgb */ color: rgb(64, 66, 196);
/* oklch */ color: oklch(46.4% 0.197 274.9);

Tailwind

colors: {
  custom: {
    50: '#8577d7',
    500: '#4042c4',
    950: '#000000',
  },
}

SCSS

$custom: #4042c4;
$custom-light: #8577d7;
$custom-dark: #000000;

JSON

{
  "hex": "#4042c4",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 196
  },
  "hsl": {
    "h": 239.091,
    "s": 52.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.46433,
    "c": 0.19704,
    "h": 274.9
  },
  "luminance": 0.08972
}

Semantic roles & 50–950 ramp

primary

#4042C4

secondary

#CDCC93

accent

#DA4CDC

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #4042C4

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

Preview Lab → · Contrast checker → · Palette generator →