#4042C0#4042C0

#4042C0 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 46.1% C 0.192 H 275.1°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#4042C0
RGB	rgb(64, 66, 192)
HSL	hsl(239, 50%, 50%)
HSV	hsv(239, 67%, 75%)
CMYK	cmyk(66.7%, 65.6%, 0%, 24.7%)
CIE-LAB	lab(35.58, 39.03, -66.23)
CIE-LCH	lch(35.58, 76.88, 300.51°)
OKLab	oklab(46.07% 0.0172 -0.1911)
OKLCH	oklch(46.07% 0.192 275.1)
XYZ	xyz(13.5739, 8.7910, 50.8405)
Luminance	0.0879 (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

#4042C0 #C0BE40

analogous

#4082C0 #4042C0 #7E40C0

triadic

#4042C0 #C04042 #42C040

tetradic

#4042C0 #C04082 #C0BE40 #40C07E

square

#4042C0 #C04082 #C0BE40 #40C07E

split-complementary

#4042C0 #C07E40 #82C040

monochromatic

#212264 #303292 #4042C0 #6E70CF #9C9DDE

Accessibility & contrast

On white

7.61

#4042C0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#4042C0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4042C0

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4042C0	#FFFFFF	#000000	##FFFFFF
##4042C0	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C4

Deuteranopia (green-blind)

#004EBE

Tritanopia (blue-blind)

#00637B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #4042c0;
/* rgb */ color: rgb(64, 66, 192);
/* oklch */ color: oklch(46.1% 0.192 275.1);

Tailwind

colors: {
  custom: {
    50: '#8577d4',
    500: '#4042c0',
    950: '#000000',
  },
}

SCSS

$custom: #4042c0;
$custom-light: #8577d4;
$custom-dark: #000000;

JSON

{
  "hex": "#4042c0",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 192
  },
  "hsl": {
    "h": 239.063,
    "s": 50.394,
    "l": 50.196
  },
  "oklch": {
    "l": 0.46072,
    "c": 0.19191,
    "h": 275.1
  },
  "luminance": 0.08792
}

Semantic roles & 50–950 ramp

primary

#4042C0

secondary

#CBCA91

accent

#D84EDA

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #4042C0

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

Preview Lab → · Contrast checker → · Palette generator →