#642F8A#642F8A

#642F8A is a dark, vivid violet. Relative luminance 0.066; OKLCH L 42.1% C 0.148 H 308.1°. Best body text is #FFFFFF at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#642F8A
RGB	rgb(100, 47, 138)
HSL	hsl(275, 49%, 36%)
HSV	hsv(275, 66%, 54%)
CMYK	cmyk(27.5%, 65.9%, 0%, 45.9%)
CIE-LAB	lab(30.83, 40.78, -41.30)
CIE-LCH	lch(30.83, 58.05, 314.63°)
OKLab	oklab(42.14% 0.0914 -0.1167)
OKLCH	oklch(42.14% 0.148 308.1)
XYZ	xyz(10.8586, 6.5775, 24.7374)
Luminance	0.0658 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#642F8A #558A2F

analogous

#372F8A #642F8A #8A2F83

triadic

#642F8A #8A642F #2F8A64

tetradic

#642F8A #8A372F #558A2F #2F838A

square

#642F8A #8A372F #558A2F #2F838A

split-complementary

#642F8A #838A2F #2F8A37

monochromatic

#22102F #431F5C #642F8A #853FB8 #A268CC

Accessibility & contrast

On white

9.07

#642F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#642F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #642F8A

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##642F8A	#FFFFFF	#000000	##FFFFFF
##642F8A	1.00	9.07	2.32	9.07
#FFFFFF	9.07	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478D

Deuteranopia (green-blind)

#1E4988

Tritanopia (blue-blind)

#5E4258

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #642f8a;
/* rgb */ color: rgb(100, 47, 138);
/* oklch */ color: oklch(42.1% 0.148 308.1);

Tailwind

colors: {
  custom: {
    50: '#936bad',
    500: '#642f8a',
    950: '#000000',
  },
}

SCSS

$custom: #642f8a;
$custom-light: #936bad;
$custom-dark: #000000;

JSON

{
  "hex": "#642f8a",
  "rgb": {
    "r": 100,
    "g": 47,
    "b": 138
  },
  "hsl": {
    "h": 274.945,
    "s": 49.189,
    "l": 36.275
  },
  "oklch": {
    "l": 0.42137,
    "c": 0.1483,
    "h": 308.1
  },
  "luminance": 0.06577
}

Semantic roles & 50–950 ramp

primary

#642F8A

secondary

#84B362

accent

#D94F89

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0D0710

muted

#7E7A7F

Preview Lab

Preview with #642F8A

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

Preview Lab → · Contrast checker → · Palette generator →