#642FAB#642FAB

#642FAB is a dark, vivid violet. Relative luminance 0.077; OKLCH L 44.7% C 0.185 H 297.9°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#642FAB
RGB	rgb(100, 47, 171)
HSL	hsl(266, 57%, 43%)
HSV	hsv(266, 73%, 67%)
CMYK	cmyk(41.5%, 72.5%, 0%, 32.9%)
CIE-LAB	lab(33.31, 49.10, -57.36)
CIE-LCH	lch(33.31, 75.50, 310.56°)
OKLab	oklab(44.7% 0.0868 -0.1639)
OKLCH	oklch(44.7% 0.186 297.9)
XYZ	xyz(13.6208, 7.6824, 39.2854)
Luminance	0.0768 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#642FAB #76AB2F

analogous

#2F38AB #642FAB #A22FAB

triadic

#642FAB #AB642F #2FAB64

tetradic

#642FAB #AB2F38 #76AB2F #2FABA2

square

#642FAB #AB2F38 #76AB2F #2FABA2

split-complementary

#642FAB #ABA22F #38AB2F

monochromatic

#2C154B #48227B #642FAB #824ACD #A37ADA

Accessibility & contrast

On white

8.28

#642FAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#642FAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #642FAB

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##642FAB	#FFFFFF	#000000	##FFFFFF
##642FAB	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAF

Deuteranopia (green-blind)

#004DA9

Tritanopia (blue-blind)

#524E6A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #642fab;
/* rgb */ color: rgb(100, 47, 171);
/* oklch */ color: oklch(44.7% 0.185 297.9);

Tailwind

colors: {
  custom: {
    50: '#966cc5',
    500: '#642fab',
    950: '#000000',
  },
}

SCSS

$custom: #642fab;
$custom-light: #966cc5;
$custom-dark: #000000;

JSON

{
  "hex": "#642fab",
  "rgb": {
    "r": 100,
    "g": 47,
    "b": 171
  },
  "hsl": {
    "h": 265.645,
    "s": 56.881,
    "l": 42.745
  },
  "oklch": {
    "l": 0.44699,
    "c": 0.1855,
    "h": 297.9
  },
  "luminance": 0.07683
}

Semantic roles & 50–950 ramp

primary

#642FAB

secondary

#A1C373

accent

#E0489F

background

#F9F6FC

surface

#F2ECF8

border

#CCC7D1

text

#0E0713

muted

#7E7A82

Preview Lab

Preview with #642FAB

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

Preview Lab → · Contrast checker → · Palette generator →