#641B9D#641B9D

#641B9D is a dark, vivid violet. Relative luminance 0.059; OKLCH L 41.5% C 0.192 H 304.2°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#641B9D
RGB	rgb(100, 27, 157)
HSL	hsl(274, 71%, 36%)
HSV	hsv(274, 83%, 62%)
CMYK	cmyk(36.3%, 82.8%, 0%, 38.4%)
CIE-LAB	lab(29.23, 54.00, -55.57)
CIE-LCH	lch(29.23, 77.48, 314.18°)
OKLab	oklab(41.47% 0.1076 -0.1585)
OKLCH	oklch(41.47% 0.192 304.2)
XYZ	xyz(11.7319, 5.9275, 32.4178)
Luminance	0.0593 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641B9D #549D1B

analogous

#231B9D #641B9D #9D1B95

triadic

#641B9D #9D641B #1B9D64

tetradic

#641B9D #9D231B #549D1B #1B959D

square

#641B9D #9D231B #549D1B #1B959D

split-complementary

#641B9D #959D1B #1B9D23

monochromatic

#210935 #431269 #641B9D #8524D1 #A251E1

Accessibility & contrast

On white

9.61

#641B9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#641B9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641B9D

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641B9D	#FFFFFF	#000000	##FFFFFF
##641B9D	1.00	9.61	2.19	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043A0

Deuteranopia (green-blind)

#00459B

Tritanopia (blue-blind)

#593F5D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #641b9d;
/* rgb */ color: rgb(100, 27, 157);
/* oklch */ color: oklch(41.5% 0.192 304.2);

Tailwind

colors: {
  custom: {
    50: '#9662bb',
    500: '#641b9d',
    950: '#000000',
  },
}

SCSS

$custom: #641b9d;
$custom-light: #9662bb;
$custom-dark: #000000;

JSON

{
  "hex": "#641b9d",
  "rgb": {
    "r": 100,
    "g": 27,
    "b": 157
  },
  "hsl": {
    "h": 273.692,
    "s": 70.652,
    "l": 36.078
  },
  "oklch": {
    "l": 0.41469,
    "c": 0.1916,
    "h": 304.2
  },
  "luminance": 0.05928
}

Semantic roles & 50–950 ramp

primary

#641B9D

secondary

#83C450

accent

#ED3A89

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0612

muted

#7E7A81

Preview Lab

Preview with #641B9D

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

Preview Lab → · Contrast checker → · Palette generator →