#42278E#42278E

#42278E is a dark, vivid violet. Relative luminance 0.046; OKLCH L 37.5% C 0.159 H 288.2°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#42278E
RGB	rgb(66, 39, 142)
HSL	hsl(256, 57%, 35%)
HSV	hsv(256, 73%, 56%)
CMYK	cmyk(53.5%, 72.5%, 0%, 44.3%)
CIE-LAB	lab(25.45, 39.12, -52.70)
CIE-LCH	lch(25.45, 65.63, 306.59°)
OKLab	oklab(37.45% 0.0497 -0.1514)
OKLCH	oklch(37.45% 0.159 288.2)
XYZ	xyz(7.8533, 4.5619, 26.0527)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42278E #738E27

analogous

#273F8E #42278E #75278E

triadic

#42278E #8E4227 #278E42

tetradic

#42278E #8E273F #738E27 #278E75

square

#42278E #8E273F #738E27 #278E75

split-complementary

#42278E #8E7527 #3F8E27

monochromatic

#150D2E #2C1A5E #42278E #5834BE #7C5DD2

Accessibility & contrast

On white

10.98

#42278E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#42278E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42278E

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42278E	#FFFFFF	#000000	##FFFFFF
##42278E	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F91

Deuteranopia (green-blind)

#003A8C

Tritanopia (blue-blind)

#254258

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #42278e;
/* rgb */ color: rgb(66, 39, 142);
/* oklch */ color: oklch(37.5% 0.159 288.2);

Tailwind

colors: {
  custom: {
    50: '#7f64b0',
    500: '#42278e',
    950: '#000000',
  },
}

SCSS

$custom: #42278e;
$custom-light: #7f64b0;
$custom-dark: #000000;

JSON

{
  "hex": "#42278e",
  "rgb": {
    "r": 66,
    "g": 39,
    "b": 142
  },
  "hsl": {
    "h": 255.728,
    "s": 56.906,
    "l": 35.49
  },
  "oklch": {
    "l": 0.3745,
    "c": 0.15937,
    "h": 288.2
  },
  "luminance": 0.04562
}

Semantic roles & 50–950 ramp

primary

#42278E

secondary

#9FB859

accent

#E048B8

background

#F8F6FA

surface

#EFEBF5

border

#CAC6CF

text

#0B0511

muted

#7C7A80

Preview Lab

Preview with #42278E

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

Preview Lab → · Contrast checker → · Palette generator →