#641B83#641B83

#641B83 is a dark, vivid purple. Relative luminance 0.051; OKLCH L 39.3% C 0.167 H 313.2°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#641B83
RGB	rgb(100, 27, 131)
HSL	hsl(282, 66%, 31%)
HSV	hsv(282, 79%, 51%)
CMYK	cmyk(23.7%, 79.4%, 0%, 48.6%)
CIE-LAB	lab(27.11, 48.20, -42.94)
CIE-LCH	lch(27.11, 64.55, 318.30°)
OKLab	oklab(39.32% 0.1142 -0.1214)
OKLCH	oklch(39.32% 0.167 313.2)
XYZ	xyz(9.7435, 5.1322, 21.9457)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 6.20

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641B83 #3A831B

analogous

#301B83 #641B83 #831B6E

triadic

#641B83 #83641B #1B8364

tetradic

#641B83 #83301B #3A831B #1B6E83

square

#641B83 #83301B #3A831B #1B6E83

split-complementary

#641B83 #6E831B #1B8330

monochromatic

#17061E #3D1150 #641B83 #8B25B6 #AB41D8

Accessibility & contrast

On white

10.36

#641B83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#641B83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641B83

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641B83	#FFFFFF	#000000	##FFFFFF
##641B83	1.00	10.36	2.03	10.36
#FFFFFF	10.36	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C86

Deuteranopia (green-blind)

#0E4281

Tritanopia (blue-blind)

#61334E

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #641b83;
/* rgb */ color: rgb(100, 27, 131);
/* oklch */ color: oklch(39.3% 0.167 313.2);

Tailwind

colors: {
  custom: {
    50: '#9460a8',
    500: '#641b83',
    950: '#000000',
  },
}

SCSS

$custom: #641b83;
$custom-light: #9460a8;
$custom-dark: #000000;

JSON

{
  "hex": "#641b83",
  "rgb": {
    "r": 100,
    "g": 27,
    "b": 131
  },
  "hsl": {
    "h": 282.115,
    "s": 65.823,
    "l": 30.98
  },
  "oklch": {
    "l": 0.39325,
    "c": 0.16667,
    "h": 313.2
  },
  "luminance": 0.05132
}

Semantic roles & 50–950 ramp

primary

#641B83

secondary

#66B643

accent

#E93F72

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #641B83

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

Preview Lab → · Contrast checker → · Palette generator →