#4042AD#4042AD

#4042AD is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.4% C 0.167 H 276.4°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#4042AD
RGB	rgb(64, 66, 173)
HSL	hsl(239, 46%, 46%)
HSV	hsv(239, 63%, 68%)
CMYK	cmyk(63%, 61.8%, 0%, 32.2%)
CIE-LAB	lab(33.99, 32.57, -57.60)
CIE-LCH	lch(33.99, 66.17, 299.48°)
OKLab	oklab(44.42% 0.0186 -0.1658)
OKLCH	oklch(44.42% 0.167 276.4)
XYZ	xyz(11.6029, 8.0026, 40.4603)
Luminance	0.0800 (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

#4042AD #ADAB40

analogous

#4079AD #4042AD #7540AD

triadic

#4042AD #AD4042 #42AD40

tetradic

#4042AD #AD4079 #ADAB40 #40AD75

square

#4042AD #AD4079 #ADAB40 #40AD75

split-complementary

#4042AD #AD7540 #79AD40

monochromatic

#1F2054 #2F3180 #4042AD #6466C6 #9192D6

Accessibility & contrast

On white

8.07

#4042AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#4042AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4042AD

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4042AD	#FFFFFF	#000000	##FFFFFF
##4042AD	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B0

Deuteranopia (green-blind)

#004BAB

Tritanopia (blue-blind)

#005D71

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #4042ad;
/* rgb */ color: rgb(64, 66, 173);
/* oklch */ color: oklch(44.4% 0.167 276.4);

Tailwind

colors: {
  custom: {
    50: '#8176c6',
    500: '#4042ad',
    950: '#000000',
  },
}

SCSS

$custom: #4042ad;
$custom-light: #8176c6;
$custom-dark: #000000;

JSON

{
  "hex": "#4042ad",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 173
  },
  "hsl": {
    "h": 238.899,
    "s": 45.992,
    "l": 46.471
  },
  "oklch": {
    "l": 0.44416,
    "c": 0.16686,
    "h": 276.4
  },
  "luminance": 0.08004
}

Semantic roles & 50–950 ramp

primary

#4042AD

secondary

#C2C087

accent

#D352D6

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #4042AD

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

Preview Lab → · Contrast checker → · Palette generator →