#642F8B#642F8B

#642F8B is a dark, vivid violet. Relative luminance 0.066; OKLCH L 42.2% C 0.149 H 307.7°. Best body text is #FFFFFF at 9.05:1 contrast (WCAG AA passes).

Color values

HEX	#642F8B
RGB	rgb(100, 47, 139)
HSL	hsl(275, 49%, 36%)
HSV	hsv(275, 66%, 55%)
CMYK	cmyk(28.1%, 66.2%, 0%, 45.5%)
CIE-LAB	lab(30.89, 41.02, -41.81)
CIE-LCH	lch(30.89, 58.58, 314.45°)
OKLab	oklab(42.21% 0.0914 -0.1182)
OKLCH	oklch(42.21% 0.149 307.7)
XYZ	xyz(10.9313, 6.6066, 25.1204)
Luminance	0.0661 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#642F8B #568B2F

analogous

#362F8B #642F8B #8B2F84

triadic

#642F8B #8B642F #2F8B64

tetradic

#642F8B #8B362F #568B2F #2F848B

square

#642F8B #8B362F #568B2F #2F848B

split-complementary

#642F8B #848B2F #2F8B36

monochromatic

#221030 #43205D #642F8B #853EB9 #A268CC

Accessibility & contrast

On white

9.05

#642F8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#642F8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #642F8B

9.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##642F8B	#FFFFFF	#000000	##FFFFFF
##642F8B	1.00	9.05	2.32	9.05
#FFFFFF	9.05	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478E

Deuteranopia (green-blind)

#1D4989

Tritanopia (blue-blind)

#5E4258

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #642f8b;
/* rgb */ color: rgb(100, 47, 139);
/* oklch */ color: oklch(42.2% 0.149 307.7);

Tailwind

colors: {
  custom: {
    50: '#936bad',
    500: '#642f8b',
    950: '#000000',
  },
}

SCSS

$custom: #642f8b;
$custom-light: #936bad;
$custom-dark: #000000;

JSON

{
  "hex": "#642f8b",
  "rgb": {
    "r": 100,
    "g": 47,
    "b": 139
  },
  "hsl": {
    "h": 274.565,
    "s": 49.462,
    "l": 36.471
  },
  "oklch": {
    "l": 0.42208,
    "c": 0.14943,
    "h": 307.7
  },
  "luminance": 0.06606
}

Semantic roles & 50–950 ramp

primary

#642F8B

secondary

#85B363

accent

#D94F89

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0D0710

muted

#7E7A7F

Preview Lab

Preview with #642F8B

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

Preview Lab → · Contrast checker → · Palette generator →