#641C81#641C81

#641C81 is a dark, vivid purple. Relative luminance 0.051; OKLCH L 39.3% C 0.164 H 314.0°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#641C81
RGB	rgb(100, 28, 129)
HSL	hsl(283, 64%, 31%)
HSV	hsv(283, 78%, 51%)
CMYK	cmyk(22.5%, 78.3%, 0%, 49.4%)
CIE-LAB	lab(27.09, 47.39, -41.71)
CIE-LCH	lch(27.09, 63.13, 318.65°)
OKLab	oklab(39.26% 0.1136 -0.1178)
OKLCH	oklch(39.26% 0.164 314)
XYZ	xyz(9.6326, 5.1251, 21.2465)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641C81 #39811C

analogous

#311C81 #641C81 #811C6B

triadic

#641C81 #81641C #1C8164

tetradic

#641C81 #81311C #39811C #1C6B81

square

#641C81 #81311C #39811C #1C6B81

split-complementary

#641C81 #6B811C #1C8131

monochromatic

#16061C #3D114F #641C81 #8B27B3 #AB42D6

Accessibility & contrast

On white

10.37

#641C81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#641C81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641C81

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641C81	#FFFFFF	#000000	##FFFFFF
##641C81	1.00	10.37	2.03	10.37
#FFFFFF	10.37	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C84

Deuteranopia (green-blind)

#14427F

Tritanopia (blue-blind)

#61334E

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #641c81;
/* rgb */ color: rgb(100, 28, 129);
/* oklch */ color: oklch(39.3% 0.164 314.0);

Tailwind

colors: {
  custom: {
    50: '#9461a6',
    500: '#641c81',
    950: '#000000',
  },
}

SCSS

$custom: #641c81;
$custom-light: #9461a6;
$custom-dark: #000000;

JSON

{
  "hex": "#641c81",
  "rgb": {
    "r": 100,
    "g": 28,
    "b": 129
  },
  "hsl": {
    "h": 282.772,
    "s": 64.331,
    "l": 30.784
  },
  "oklch": {
    "l": 0.39263,
    "c": 0.16368,
    "h": 314
  },
  "luminance": 0.05125
}

Semantic roles & 50–950 ramp

primary

#641C81

secondary

#65B444

accent

#E74070

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E050F

muted

#7E7A7F

Preview Lab

Preview with #641C81

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

Preview Lab → · Contrast checker → · Palette generator →