#4042CE#4042CE

#4042CE is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 47.4% C 0.210 H 274.3°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#4042CE
RGB	rgb(64, 66, 206)
HSL	hsl(239, 59%, 53%)
HSV	hsv(239, 69%, 81%)
CMYK	cmyk(68.9%, 68%, 0%, 19.2%)
CIE-LAB	lab(36.82, 43.72, -72.35)
CIE-LCH	lch(36.82, 84.54, 301.14°)
OKLab	oklab(47.35% 0.0157 -0.2091)
OKLCH	oklch(47.35% 0.21 274.3)
XYZ	xyz(15.1994, 9.4412, 59.4019)
Luminance	0.0944 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.13

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4042CE #CECC40

analogous

#4089CE #4042CE #8540CE

triadic

#4042CE #CE4042 #42CE40

tetradic

#4042CE #CE4089 #CECC40 #40CE85

square

#4042CE #CE4089 #CECC40 #40CE85

split-complementary

#4042CE #CE8540 #89CE40

monochromatic

#1E1F75 #2B2CA6 #4042CE #7172DA #A1A2E7

Accessibility & contrast

On white

7.27

#4042CE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#4042CE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4042CE

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4042CE	#FFFFFF	#000000	##FFFFFF
##4042CE	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD2

Deuteranopia (green-blind)

#0050CB

Tritanopia (blue-blind)

#006883

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #4042ce;
/* rgb */ color: rgb(64, 66, 206);
/* oklch */ color: oklch(47.4% 0.210 274.3);

Tailwind

colors: {
  custom: {
    50: '#8777de',
    500: '#4042ce',
    950: '#000000',
  },
}

SCSS

$custom: #4042ce;
$custom-light: #8777de;
$custom-dark: #000000;

JSON

{
  "hex": "#4042ce",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 206
  },
  "hsl": {
    "h": 239.155,
    "s": 59.167,
    "l": 52.941
  },
  "oklch": {
    "l": 0.47352,
    "c": 0.20965,
    "h": 274.3
  },
  "luminance": 0.09443
}

Semantic roles & 50–950 ramp

primary

#4042CE

secondary

#D4D396

accent

#E045E2

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4042CE

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

Preview Lab → · Contrast checker → · Palette generator →