#641B94#641B94

#641B94 is a dark, vivid violet. Relative luminance 0.056; OKLCH L 40.7% C 0.183 H 307.1°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#641B94
RGB	rgb(100, 27, 148)
HSL	hsl(276, 69%, 34%)
HSV	hsv(276, 82%, 58%)
CMYK	cmyk(32.4%, 81.8%, 0%, 42%)
CIE-LAB	lab(28.46, 51.95, -51.30)
CIE-LCH	lch(28.46, 73.01, 315.36°)
OKLab	oklab(40.7% 0.1102 -0.146)
OKLCH	oklch(40.7% 0.183 307.1)
XYZ	xyz(10.9916, 5.6314, 28.5192)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641B94 #4B941B

analogous

#271B94 #641B94 #941B88

triadic

#641B94 #94641B #1B9464

tetradic

#641B94 #94271B #4B941B #1B8894

square

#641B94 #94271B #4B941B #1B8894

split-complementary

#641B94 #88941B #1B9427

monochromatic

#1E082C #411260 #641B94 #8724C8 #A44BDE

Accessibility & contrast

On white

9.88

#641B94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#641B94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641B94

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641B94	#FFFFFF	#000000	##FFFFFF
##641B94	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004197

Deuteranopia (green-blind)

#004492

Tritanopia (blue-blind)

#5C3B58

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #641b94;
/* rgb */ color: rgb(100, 27, 148);
/* oklch */ color: oklch(40.7% 0.183 307.1);

Tailwind

colors: {
  custom: {
    50: '#9561b4',
    500: '#641b94',
    950: '#000000',
  },
}

SCSS

$custom: #641b94;
$custom-light: #9561b4;
$custom-dark: #000000;

JSON

{
  "hex": "#641b94",
  "rgb": {
    "r": 100,
    "g": 27,
    "b": 148
  },
  "hsl": {
    "h": 276.198,
    "s": 69.143,
    "l": 34.314
  },
  "oklch": {
    "l": 0.40699,
    "c": 0.18293,
    "h": 307.1
  },
  "luminance": 0.05631
}

Semantic roles & 50–950 ramp

primary

#641B94

secondary

#79C04B

accent

#EC3C82

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #641B94

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

Preview Lab → · Contrast checker → · Palette generator →