#42278D#42278D

#42278D is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.4% C 0.158 H 288.4°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#42278D
RGB	rgb(66, 39, 141)
HSL	hsl(256, 57%, 35%)
HSV	hsv(256, 72%, 55%)
CMYK	cmyk(53.2%, 72.3%, 0%, 44.7%)
CIE-LAB	lab(25.36, 38.82, -52.23)
CIE-LCH	lch(25.36, 65.07, 306.62°)
OKLab	oklab(37.36% 0.0499 -0.15)
OKLCH	oklch(37.36% 0.158 288.4)
XYZ	xyz(7.7786, 4.5320, 25.6590)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42278D #728D27

analogous

#273F8D #42278D #75278D

triadic

#42278D #8D4227 #278D42

tetradic

#42278D #8D273F #728D27 #278D75

square

#42278D #8D273F #728D27 #278D75

split-complementary

#42278D #8D7527 #3F8D27

monochromatic

#150C2D #2C1A5D #42278D #5834BD #7C5CD2

Accessibility & contrast

On white

11.02

#42278D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#42278D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42278D

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42278D	#FFFFFF	#000000	##FFFFFF
##42278D	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E90

Deuteranopia (green-blind)

#00398B

Tritanopia (blue-blind)

#264257

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #42278d;
/* rgb */ color: rgb(66, 39, 141);
/* oklch */ color: oklch(37.4% 0.158 288.4);

Tailwind

colors: {
  custom: {
    50: '#7e64af',
    500: '#42278d',
    950: '#000000',
  },
}

SCSS

$custom: #42278d;
$custom-light: #7e64af;
$custom-dark: #000000;

JSON

{
  "hex": "#42278d",
  "rgb": {
    "r": 66,
    "g": 39,
    "b": 141
  },
  "hsl": {
    "h": 255.882,
    "s": 56.667,
    "l": 35.294
  },
  "oklch": {
    "l": 0.37358,
    "c": 0.15812,
    "h": 288.4
  },
  "luminance": 0.04532
}

Semantic roles & 50–950 ramp

primary

#42278D

secondary

#9EB759

accent

#E048B8

background

#F8F6FA

surface

#EFEBF5

border

#CAC6CF

text

#0B0510

muted

#7C7A7F

Preview Lab

Preview with #42278D

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

Preview Lab → · Contrast checker → · Palette generator →