#4042C8#4042C8

#4042C8 is a mid, highly saturated blue. Relative luminance 0.092; OKLCH L 46.8% C 0.202 H 274.7°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#4042C8
RGB	rgb(64, 66, 200)
HSL	hsl(239, 55%, 52%)
HSV	hsv(239, 68%, 78%)
CMYK	cmyk(68%, 67%, 0%, 21.6%)
CIE-LAB	lab(36.28, 41.72, -69.75)
CIE-LCH	lch(36.28, 81.28, 300.88°)
OKLab	oklab(46.8% 0.0164 -0.2014)
OKLCH	oklch(46.8% 0.202 274.7)
XYZ	xyz(14.4844, 9.1552, 55.6362)
Luminance	0.0916 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.83

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4042C8 #C8C640

analogous

#4086C8 #4042C8 #8240C8

triadic

#4042C8 #C84042 #42C840

tetradic

#4042C8 #C84086 #C8C640 #40C882

square

#4042C8 #C84086 #C8C640 #40C882

split-complementary

#4042C8 #C88240 #86C840

monochromatic

#20216E #2D2F9D #4042C8 #7071D6 #9FA0E3

Accessibility & contrast

On white

7.42

#4042C8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#4042C8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4042C8

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4042C8	#FFFFFF	#000000	##FFFFFF
##4042C8	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCC

Deuteranopia (green-blind)

#004FC5

Tritanopia (blue-blind)

#00667F

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #4042c8;
/* rgb */ color: rgb(64, 66, 200);
/* oklch */ color: oklch(46.8% 0.202 274.7);

Tailwind

colors: {
  custom: {
    50: '#8677da',
    500: '#4042c8',
    950: '#000000',
  },
}

SCSS

$custom: #4042c8;
$custom-light: #8677da;
$custom-dark: #000000;

JSON

{
  "hex": "#4042c8",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 200
  },
  "hsl": {
    "h": 239.118,
    "s": 55.285,
    "l": 51.765
  },
  "oklch": {
    "l": 0.46798,
    "c": 0.20212,
    "h": 274.7
  },
  "luminance": 0.09157
}

Semantic roles & 50–950 ramp

primary

#4042C8

secondary

#D0CF94

accent

#DC49DF

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4042C8

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

Preview Lab → · Contrast checker → · Palette generator →