#642D9B#642D9B

#642D9B is a dark, vivid violet. Relative luminance 0.070; OKLCH L 43.2% C 0.170 H 302.7°. Best body text is #FFFFFF at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#642D9B
RGB	rgb(100, 45, 155)
HSL	hsl(270, 55%, 39%)
HSV	hsv(270, 71%, 61%)
CMYK	cmyk(35.5%, 71%, 0%, 39.2%)
CIE-LAB	lab(31.70, 45.99, -50.33)
CIE-LCH	lch(31.70, 68.18, 312.42°)
OKLab	oklab(43.16% 0.0918 -0.1432)
OKLCH	oklch(43.16% 0.17 302.7)
XYZ	xyz(12.1089, 6.9526, 31.7080)
Luminance	0.0695 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#642D9B #649B2D

analogous

#2D2D9B #642D9B #9B2D9B

triadic

#642D9B #9B642D #2D9B64

tetradic

#642D9B #9B2D2D #649B2D #2D9B9B

square

#642D9B #9B2D2D #649B2D #2D9B9B

split-complementary

#642D9B #9B9B2D #2D9B2D

monochromatic

#27113C #451F6C #642D9B #833EC7 #A16ED5

Accessibility & contrast

On white

8.78

#642D9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#642D9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #642D9B

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##642D9B	#FFFFFF	#000000	##FFFFFF
##642D9B	1.00	8.78	2.39	8.78
#FFFFFF	8.78	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9E

Deuteranopia (green-blind)

#004A99

Tritanopia (blue-blind)

#594761

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #642d9b;
/* rgb */ color: rgb(100, 45, 155);
/* oklch */ color: oklch(43.2% 0.170 302.7);

Tailwind

colors: {
  custom: {
    50: '#956bb9',
    500: '#642d9b',
    950: '#000000',
  },
}

SCSS

$custom: #642d9b;
$custom-light: #956bb9;
$custom-dark: #000000;

JSON

{
  "hex": "#642d9b",
  "rgb": {
    "r": 100,
    "g": 45,
    "b": 155
  },
  "hsl": {
    "h": 270,
    "s": 55,
    "l": 39.216
  },
  "oklch": {
    "l": 0.43156,
    "c": 0.17015,
    "h": 302.7
  },
  "luminance": 0.06953
}

Semantic roles & 50–950 ramp

primary

#642D9B

secondary

#92BC68

accent

#DE4994

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0712

muted

#7E7A81

Preview Lab

Preview with #642D9B

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

Preview Lab → · Contrast checker → · Palette generator →