#641B74#641B74

#641B74 is a dark, vivid purple. Relative luminance 0.048; OKLCH L 38.2% C 0.153 H 319.7°. Best body text is #FFFFFF at 10.76:1 contrast (WCAG AA passes).

Color values

HEX	#641B74
RGB	rgb(100, 27, 116)
HSL	hsl(289, 62%, 28%)
HSV	hsv(289, 77%, 45%)
CMYK	cmyk(13.8%, 76.7%, 0%, 54.5%)
CIE-LAB	lab(26.02, 45.05, -35.18)
CIE-LCH	lch(26.02, 57.16, 322.01°)
OKLab	oklab(38.21% 0.1164 -0.0987)
OKLCH	oklch(38.21% 0.153 319.7)
XYZ	xyz(8.7994, 4.7546, 16.9738)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641B74 #2B741B

analogous

#371B74 #641B74 #741B58

triadic

#641B74 #74641B #1B7464

tetradic

#641B74 #74371B #2B741B #1B5874

square

#641B74 #74371B #2B741B #1B5874

split-complementary

#641B74 #58741B #1B7437

monochromatic

#150619 #390F42 #641B74 #8F27A6 #B539D1

Accessibility & contrast

On white

10.76

#641B74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#641B74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641B74

10.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641B74	#FFFFFF	#000000	##FFFFFF
##641B74	1.00	10.76	1.95	10.76
#FFFFFF	10.76	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003976

Deuteranopia (green-blind)

#234072

Tritanopia (blue-blind)

#642D46

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #641b74;
/* rgb */ color: rgb(100, 27, 116);
/* oklch */ color: oklch(38.2% 0.153 319.7);

Tailwind

colors: {
  custom: {
    50: '#93609c',
    500: '#641b74',
    950: '#000000',
  },
}

SCSS

$custom: #641b74;
$custom-light: #93609c;
$custom-dark: #000000;

JSON

{
  "hex": "#641b74",
  "rgb": {
    "r": 100,
    "g": 27,
    "b": 116
  },
  "hsl": {
    "h": 289.213,
    "s": 62.238,
    "l": 28.039
  },
  "oklch": {
    "l": 0.38213,
    "c": 0.15256,
    "h": 319.7
  },
  "luminance": 0.04754
}

Semantic roles & 50–950 ramp

primary

#641B74

secondary

#55A942

accent

#E54260

background

#F9F5F9

surface

#F2EAF2

border

#CCC6CC

text

#0D050E

muted

#7E797E

Preview Lab

Preview with #641B74

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

Preview Lab → · Contrast checker → · Palette generator →