#42278F#42278F

#42278F is a dark, vivid violet. Relative luminance 0.046; OKLCH L 37.5% C 0.161 H 288.0°. Best body text is #FFFFFF at 10.95:1 contrast (WCAG AA passes).

Color values

HEX	#42278F
RGB	rgb(66, 39, 143)
HSL	hsl(256, 57%, 36%)
HSV	hsv(256, 73%, 56%)
CMYK	cmyk(53.8%, 72.7%, 0%, 43.9%)
CIE-LAB	lab(25.54, 39.42, -53.17)
CIE-LCH	lch(25.54, 66.19, 306.55°)
OKLab	oklab(37.54% 0.0495 -0.1528)
OKLCH	oklch(37.54% 0.161 288)
XYZ	xyz(7.9288, 4.5921, 26.4499)
Luminance	0.0459 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42278F #748F27

analogous

#27408F #42278F #76278F

triadic

#42278F #8F4227 #278F42

tetradic

#42278F #8F2740 #748F27 #278F76

square

#42278F #8F2740 #748F27 #278F76

split-complementary

#42278F #8F7627 #408F27

monochromatic

#160D2F #2C1A5F #42278F #5834BF #7C5DD3

Accessibility & contrast

On white

10.95

#42278F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#42278F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42278F

10.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42278F	#FFFFFF	#000000	##FFFFFF
##42278F	1.00	10.95	1.92	10.95
#FFFFFF	10.95	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F92

Deuteranopia (green-blind)

#003A8D

Tritanopia (blue-blind)

#244258

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #42278f;
/* rgb */ color: rgb(66, 39, 143);
/* oklch */ color: oklch(37.5% 0.161 288.0);

Tailwind

colors: {
  custom: {
    50: '#7f64b1',
    500: '#42278f',
    950: '#000000',
  },
}

SCSS

$custom: #42278f;
$custom-light: #7f64b1;
$custom-dark: #000000;

JSON

{
  "hex": "#42278f",
  "rgb": {
    "r": 66,
    "g": 39,
    "b": 143
  },
  "hsl": {
    "h": 255.577,
    "s": 57.143,
    "l": 35.686
  },
  "oklch": {
    "l": 0.37543,
    "c": 0.16061,
    "h": 288
  },
  "luminance": 0.04592
}

Semantic roles & 50–950 ramp

primary

#42278F

secondary

#A0B85A

accent

#E047B9

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0511

muted

#7C7A80

Preview Lab

Preview with #42278F

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

Preview Lab → · Contrast checker → · Palette generator →