#641D8B#641D8B

#641D8B is a dark, vivid violet. Relative luminance 0.055; OKLCH L 40.1% C 0.172 H 310.0°. Best body text is #FFFFFF at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#641D8B
RGB	rgb(100, 29, 139)
HSL	hsl(279, 65%, 33%)
HSV	hsv(279, 79%, 55%)
CMYK	cmyk(28.1%, 79.1%, 0%, 45.5%)
CIE-LAB	lab(27.99, 49.20, -46.51)
CIE-LCH	lch(27.99, 67.70, 316.61°)
OKLab	oklab(40.14% 0.1108 -0.1319)
OKLCH	oklch(40.14% 0.172 310)
XYZ	xyz(10.3542, 5.4524, 24.9281)
Luminance	0.0545 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641D8B #448B1D

analogous

#2D1D8B #641D8B #8B1D7B

triadic

#641D8B #8B641D #1D8B64

tetradic

#641D8B #8B2D1D #448B1D #1D7B8B

square

#641D8B #8B2D1D #448B1D #1D7B8B

split-complementary

#641D8B #7B8B1D #1D8B2D

monochromatic

#1B0826 #401258 #641D8B #8828BE #A649D9

Accessibility & contrast

On white

10.05

#641D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#641D8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641D8B

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641D8B	#FFFFFF	#000000	##FFFFFF
##641D8B	1.00	10.05	2.09	10.05
#FFFFFF	10.05	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F8E

Deuteranopia (green-blind)

#004389

Tritanopia (blue-blind)

#5E3853

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #641d8b;
/* rgb */ color: rgb(100, 29, 139);
/* oklch */ color: oklch(40.1% 0.172 310.0);

Tailwind

colors: {
  custom: {
    50: '#9562ae',
    500: '#641d8b',
    950: '#000000',
  },
}

SCSS

$custom: #641d8b;
$custom-light: #9562ae;
$custom-dark: #000000;

JSON

{
  "hex": "#641d8b",
  "rgb": {
    "r": 100,
    "g": 29,
    "b": 139
  },
  "hsl": {
    "h": 278.727,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.40137,
    "c": 0.17225,
    "h": 310
  },
  "luminance": 0.05452
}

Semantic roles & 50–950 ramp

primary

#641D8B

secondary

#71BB49

accent

#E83F7B

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #641D8B

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

Preview Lab → · Contrast checker → · Palette generator →