#4042C1#4042C1

#4042C1 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 46.2% C 0.193 H 275.1°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#4042C1
RGB	rgb(64, 66, 193)
HSL	hsl(239, 51%, 50%)
HSV	hsv(239, 67%, 76%)
CMYK	cmyk(66.8%, 65.8%, 0%, 24.3%)
CIE-LAB	lab(35.67, 39.37, -66.67)
CIE-LCH	lch(35.67, 77.43, 300.56°)
OKLab	oklab(46.16% 0.0171 -0.1924)
OKLCH	oklch(46.16% 0.193 275.1)
XYZ	xyz(13.6850, 8.8355, 51.4260)
Luminance	0.0884 (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

#4042C1 #C1BF40

analogous

#4082C1 #4042C1 #7F40C1

triadic

#4042C1 #C14042 #42C140

tetradic

#4042C1 #C14082 #C1BF40 #40C17F

square

#4042C1 #C14082 #C1BF40 #40C17F

split-complementary

#4042C1 #C17F40 #82C140

monochromatic

#212266 #303294 #4042C1 #6E70D0 #9C9DDF

Accessibility & contrast

On white

7.59

#4042C1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#4042C1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4042C1

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4042C1	#FFFFFF	#000000	##FFFFFF
##4042C1	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC5

Deuteranopia (green-blind)

#004EBF

Tritanopia (blue-blind)

#00637C

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #4042c1;
/* rgb */ color: rgb(64, 66, 193);
/* oklch */ color: oklch(46.2% 0.193 275.1);

Tailwind

colors: {
  custom: {
    50: '#8577d5',
    500: '#4042c1',
    950: '#000000',
  },
}

SCSS

$custom: #4042c1;
$custom-light: #8577d5;
$custom-dark: #000000;

JSON

{
  "hex": "#4042c1",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 193
  },
  "hsl": {
    "h": 239.07,
    "s": 50.988,
    "l": 50.392
  },
  "oklch": {
    "l": 0.46162,
    "c": 0.1932,
    "h": 275.1
  },
  "luminance": 0.08837
}

Semantic roles & 50–950 ramp

primary

#4042C1

secondary

#CBCA92

accent

#D84DDA

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #4042C1

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

Preview Lab → · Contrast checker → · Palette generator →