#42178E#42178E

#42178E is a dark, vivid violet. Relative luminance 0.037; OKLCH L 35.5% C 0.176 H 290.8°. Best body text is #FFFFFF at 12.04:1 contrast (WCAG AA passes).

Color values

HEX	#42178E
RGB	rgb(66, 23, 142)
HSL	hsl(262, 72%, 32%)
HSV	hsv(262, 84%, 56%)
CMYK	cmyk(53.5%, 83.8%, 0%, 44.3%)
CIE-LAB	lab(22.74, 46.86, -57.15)
CIE-LCH	lch(22.74, 73.91, 309.35°)
OKLab	oklab(35.55% 0.0623 -0.1643)
OKLCH	oklch(35.55% 0.176 290.8)
XYZ	xyz(7.4342, 3.7237, 25.9130)
Luminance	0.0372 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42178E #638E17

analogous

#17278E #42178E #7E178E

triadic

#42178E #8E4217 #178E42

tetradic

#42178E #8E1727 #638E17 #178E7E

square

#42178E #8E1727 #638E17 #178E7E

split-complementary

#42178E #8E7E17 #278E17

monochromatic

#110625 #2A0E59 #42178E #5A20C3 #793FE0

Accessibility & contrast

On white

12.04

#42178E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#42178E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42178E

12.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42178E	#FFFFFF	#000000	##FFFFFF
##42178E	1.00	12.04	1.74	12.04
#FFFFFF	12.04	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003891

Deuteranopia (green-blind)

#00348C

Tritanopia (blue-blind)

#263B54

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #42178e;
/* rgb */ color: rgb(66, 23, 142);
/* oklch */ color: oklch(35.5% 0.176 290.8);

Tailwind

colors: {
  custom: {
    50: '#805bb0',
    500: '#42178e',
    950: '#000000',
  },
}

SCSS

$custom: #42178e;
$custom-light: #805bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#42178e",
  "rgb": {
    "r": 66,
    "g": 23,
    "b": 142
  },
  "hsl": {
    "h": 261.681,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.3555,
    "c": 0.17574,
    "h": 290.8
  },
  "luminance": 0.03724
}

Semantic roles & 50–950 ramp

primary

#42178E

secondary

#92C040

accent

#EF39AD

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0B0411

muted

#7C7980

Preview Lab

Preview with #42178E

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

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