#641F91#641F91

#641F91 is a dark, vivid violet. Relative luminance 0.057; OKLCH L 40.8% C 0.176 H 307.7°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#641F91
RGB	rgb(100, 31, 145)
HSL	hsl(276, 65%, 35%)
HSV	hsv(276, 79%, 57%)
CMYK	cmyk(31%, 78.6%, 0%, 43.1%)
CIE-LAB	lab(28.73, 49.78, -49.02)
CIE-LCH	lch(28.73, 69.87, 315.44°)
OKLab	oklab(40.81% 0.1076 -0.1393)
OKLCH	oklch(40.81% 0.176 307.7)
XYZ	xyz(10.8553, 5.7338, 27.3174)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641F91 #4C911F

analogous

#2B1F91 #641F91 #911F85

triadic

#641F91 #91641F #1F9164

tetradic

#641F91 #912B1F #4C911F #1F8591

square

#641F91 #912B1F #4C911F #1F8591

split-complementary

#641F91 #85911F #1F912B

monochromatic

#1E092C #41145F #641F91 #872AC3 #A451DA

Accessibility & contrast

On white

9.78

#641F91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#641F91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641F91

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641F91	#FFFFFF	#000000	##FFFFFF
##641F91	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004194

Deuteranopia (green-blind)

#00448F

Tritanopia (blue-blind)

#5D3C57

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #641f91;
/* rgb */ color: rgb(100, 31, 145);
/* oklch */ color: oklch(40.8% 0.176 307.7);

Tailwind

colors: {
  custom: {
    50: '#9563b2',
    500: '#641f91',
    950: '#000000',
  },
}

SCSS

$custom: #641f91;
$custom-light: #9563b2;
$custom-dark: #000000;

JSON

{
  "hex": "#641f91",
  "rgb": {
    "r": 100,
    "g": 31,
    "b": 145
  },
  "hsl": {
    "h": 276.316,
    "s": 64.773,
    "l": 34.51
  },
  "oklch": {
    "l": 0.40809,
    "c": 0.17604,
    "h": 307.7
  },
  "luminance": 0.05734
}

Semantic roles & 50–950 ramp

primary

#641F91

secondary

#7ABD4F

accent

#E84082

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0611

muted

#7E7A80

Preview Lab

Preview with #641F91

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

Preview Lab → · Contrast checker → · Palette generator →