#641B79#641B79

#641B79 is a dark, vivid purple. Relative luminance 0.049; OKLCH L 38.6% C 0.157 H 317.4°. Best body text is #FFFFFF at 10.63:1 contrast (WCAG AA passes).

Color values

HEX	#641B79
RGB	rgb(100, 27, 121)
HSL	hsl(287, 64%, 29%)
HSV	hsv(287, 78%, 47%)
CMYK	cmyk(17.4%, 77.7%, 0%, 52.5%)
CIE-LAB	lab(26.37, 46.08, -37.81)
CIE-LCH	lch(26.37, 59.61, 320.63°)
OKLab	oklab(38.57% 0.1158 -0.1064)
OKLCH	oklch(38.57% 0.157 317.4)
XYZ	xyz(9.0982, 4.8741, 18.5470)
Luminance	0.0487 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641B79 #30791B

analogous

#351B79 #641B79 #791B5F

triadic

#641B79 #79641B #1B7964

tetradic

#641B79 #79351B #30791B #1B5F79

square

#641B79 #79351B #30791B #1B5F79

split-complementary

#641B79 #5F791B #1B7935

monochromatic

#150619 #3B1047 #641B79 #8D26AB #B13BD3

Accessibility & contrast

On white

10.63

#641B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#641B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641B79

10.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641B79	#FFFFFF	#000000	##FFFFFF
##641B79	1.00	10.63	1.97	10.63
#FFFFFF	10.63	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A7C

Deuteranopia (green-blind)

#1E4177

Tritanopia (blue-blind)

#632F49

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #641b79;
/* rgb */ color: rgb(100, 27, 121);
/* oklch */ color: oklch(38.6% 0.157 317.4);

Tailwind

colors: {
  custom: {
    50: '#9460a0',
    500: '#641b79',
    950: '#000000',
  },
}

SCSS

$custom: #641b79;
$custom-light: #9460a0;
$custom-dark: #000000;

JSON

{
  "hex": "#641b79",
  "rgb": {
    "r": 100,
    "g": 27,
    "b": 121
  },
  "hsl": {
    "h": 286.596,
    "s": 63.514,
    "l": 29.02
  },
  "oklch": {
    "l": 0.38572,
    "c": 0.15722,
    "h": 317.4
  },
  "luminance": 0.04874
}

Semantic roles & 50–950 ramp

primary

#641B79

secondary

#5AAD43

accent

#E74166

background

#F9F5F9

surface

#F2EAF2

border

#CCC6CC

text

#0D050F

muted

#7E797E

Preview Lab

Preview with #641B79

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

Preview Lab → · Contrast checker → · Palette generator →