#641C91#641C91

#641C91 is a dark, vivid violet. Relative luminance 0.056; OKLCH L 40.5% C 0.179 H 308.0°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#641C91
RGB	rgb(100, 28, 145)
HSL	hsl(277, 68%, 34%)
HSV	hsv(277, 81%, 57%)
CMYK	cmyk(31%, 80.7%, 0%, 43.1%)
CIE-LAB	lab(28.34, 50.92, -49.66)
CIE-LCH	lch(28.34, 71.12, 315.72°)
OKLab	oklab(40.53% 0.1102 -0.1412)
OKLCH	oklch(40.53% 0.179 308)
XYZ	xyz(10.7805, 5.5843, 27.2925)
Luminance	0.0558 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641C91 #49911C

analogous

#2A1C91 #641C91 #911C84

triadic

#641C91 #91641C #1C9164

tetradic

#641C91 #912A1C #49911C #1C8491

square

#641C91 #912A1C #49911C #1C8491

split-complementary

#641C91 #84911C #1C912A

monochromatic

#1D082A #41125E #641C91 #8726C4 #A44BDC

Accessibility & contrast

On white

9.92

#641C91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#641C91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641C91

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641C91	#FFFFFF	#000000	##FFFFFF
##641C91	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004094

Deuteranopia (green-blind)

#00438F

Tritanopia (blue-blind)

#5D3A57

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #641c91;
/* rgb */ color: rgb(100, 28, 145);
/* oklch */ color: oklch(40.5% 0.179 308.0);

Tailwind

colors: {
  custom: {
    50: '#9562b2',
    500: '#641c91',
    950: '#000000',
  },
}

SCSS

$custom: #641c91;
$custom-light: #9562b2;
$custom-dark: #000000;

JSON

{
  "hex": "#641c91",
  "rgb": {
    "r": 100,
    "g": 28,
    "b": 145
  },
  "hsl": {
    "h": 276.923,
    "s": 67.63,
    "l": 33.922
  },
  "oklch": {
    "l": 0.40535,
    "c": 0.17909,
    "h": 308
  },
  "luminance": 0.05584
}

Semantic roles & 50–950 ramp

primary

#641C91

secondary

#77BE4A

accent

#EB3D80

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #641C91

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

Preview Lab → · Contrast checker → · Palette generator →