#4242AC#4242AC

#4242AC is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.5% C 0.165 H 277.3°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#4242AC
RGB	rgb(66, 66, 172)
HSL	hsl(240, 45%, 47%)
HSV	hsv(240, 62%, 67%)
CMYK	cmyk(61.6%, 61.6%, 0%, 32.5%)
CIE-LAB	lab(34.05, 32.56, -56.90)
CIE-LCH	lch(34.05, 65.55, 299.78°)
OKLab	oklab(44.47% 0.0211 -0.1637)
OKLCH	oklch(44.47% 0.165 277.3)
XYZ	xyz(11.6390, 8.0323, 39.9588)
Luminance	0.0803 (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

#4242AC #ACAC42

analogous

#4277AC #4242AC #7742AC

triadic

#4242AC #AC4242 #42AC42

tetradic

#4242AC #AC4277 #ACAC42 #42AC77

square

#4242AC #AC4277 #ACAC42 #42AC77

split-complementary

#4242AC #AC7742 #77AC42

monochromatic

#202054 #313180 #4242AC #6767C5 #9393D6

Accessibility & contrast

On white

8.06

#4242AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#4242AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4242AC

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4242AC	#FFFFFF	#000000	##FFFFFF
##4242AC	1.00	8.06	2.61	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AF

Deuteranopia (green-blind)

#004CAA

Tritanopia (blue-blind)

#005C70

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #4242ac;
/* rgb */ color: rgb(66, 66, 172);
/* oklch */ color: oklch(44.5% 0.165 277.3);

Tailwind

colors: {
  custom: {
    50: '#8276c6',
    500: '#4242ac',
    950: '#000000',
  },
}

SCSS

$custom: #4242ac;
$custom-light: #8276c6;
$custom-dark: #000000;

JSON

{
  "hex": "#4242ac",
  "rgb": {
    "r": 66,
    "g": 66,
    "b": 172
  },
  "hsl": {
    "h": 240,
    "s": 44.538,
    "l": 46.667
  },
  "oklch": {
    "l": 0.44473,
    "c": 0.16504,
    "h": 277.3
  },
  "luminance": 0.08033
}

Semantic roles & 50–950 ramp

primary

#4242AC

secondary

#C1C189

accent

#D454D4

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #4242AC

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

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