#4042C5#4042C5

#4042C5 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 46.5% C 0.198 H 274.8°. Best body text is #FFFFFF at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#4042C5
RGB	rgb(64, 66, 197)
HSL	hsl(239, 53%, 51%)
HSV	hsv(239, 68%, 77%)
CMYK	cmyk(67.5%, 66.5%, 0%, 22.7%)
CIE-LAB	lab(36.02, 40.71, -68.44)
CIE-LCH	lch(36.02, 79.63, 300.75°)
OKLab	oklab(46.52% 0.0167 -0.1976)
OKLCH	oklch(46.52% 0.198 274.8)
XYZ	xyz(14.1373, 9.0164, 53.8078)
Luminance	0.0902 (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

#4042C5 #C5C340

analogous

#4084C5 #4042C5 #8040C5

triadic

#4042C5 #C54042 #42C540

tetradic

#4042C5 #C54084 #C5C340 #40C580

square

#4042C5 #C54084 #C5C340 #40C580

split-complementary

#4042C5 #C58040 #84C540

monochromatic

#20216A #2F3099 #4042C5 #6F70D3 #9E9FE2

Accessibility & contrast

On white

7.49

#4042C5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#4042C5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4042C5

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4042C5	#FFFFFF	#000000	##FFFFFF
##4042C5	1.00	7.49	2.80	7.49
#FFFFFF	7.49	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC9

Deuteranopia (green-blind)

#004FC3

Tritanopia (blue-blind)

#00657E

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #4042c5;
/* rgb */ color: rgb(64, 66, 197);
/* oklch */ color: oklch(46.5% 0.198 274.8);

Tailwind

colors: {
  custom: {
    50: '#8677d8',
    500: '#4042c5',
    950: '#000000',
  },
}

SCSS

$custom: #4042c5;
$custom-light: #8677d8;
$custom-dark: #000000;

JSON

{
  "hex": "#4042c5",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 197
  },
  "hsl": {
    "h": 239.098,
    "s": 53.414,
    "l": 51.176
  },
  "oklch": {
    "l": 0.46524,
    "c": 0.19832,
    "h": 274.8
  },
  "luminance": 0.09018
}

Semantic roles & 50–950 ramp

primary

#4042C5

secondary

#CECD93

accent

#DB4BDD

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #4042C5

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

Preview Lab → · Contrast checker → · Palette generator →