#641D91#641D91

#641D91 is a dark, vivid violet. Relative luminance 0.056; OKLCH L 40.6% C 0.178 H 307.9°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#641D91
RGB	rgb(100, 29, 145)
HSL	hsl(277, 67%, 34%)
HSV	hsv(277, 80%, 57%)
CMYK	cmyk(31%, 80%, 0%, 43.1%)
CIE-LAB	lab(28.47, 50.55, -49.45)
CIE-LCH	lch(28.47, 70.71, 315.63°)
OKLab	oklab(40.62% 0.1094 -0.1406)
OKLCH	oklch(40.62% 0.178 307.9)
XYZ	xyz(10.8046, 5.6326, 27.3006)
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

#641D91 #4A911D

analogous

#2A1D91 #641D91 #911D84

triadic

#641D91 #91641D #1D9164

tetradic

#641D91 #912A1D #4A911D #1D8491

square

#641D91 #912A1D #4A911D #1D8491

split-complementary

#641D91 #84911D #1D912A

monochromatic

#1E092B #41135E #641D91 #8727C4 #A44DDB

Accessibility & contrast

On white

9.88

#641D91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#641D91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641D91

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641D91	#FFFFFF	#000000	##FFFFFF
##641D91	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)

#004194

Deuteranopia (green-blind)

#00448F

Tritanopia (blue-blind)

#5D3B57

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #641d91;
/* rgb */ color: rgb(100, 29, 145);
/* oklch */ color: oklch(40.6% 0.178 307.9);

Tailwind

colors: {
  custom: {
    50: '#9562b2',
    500: '#641d91',
    950: '#000000',
  },
}

SCSS

$custom: #641d91;
$custom-light: #9562b2;
$custom-dark: #000000;

JSON

{
  "hex": "#641d91",
  "rgb": {
    "r": 100,
    "g": 29,
    "b": 145
  },
  "hsl": {
    "h": 276.724,
    "s": 66.667,
    "l": 34.118
  },
  "oklch": {
    "l": 0.40624,
    "c": 0.1781,
    "h": 307.9
  },
  "luminance": 0.05632
}

Semantic roles & 50–950 ramp

primary

#641D91

secondary

#78BE4C

accent

#EA3E81

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0611

muted

#7E7A80

Preview Lab

Preview with #641D91

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

Preview Lab → · Contrast checker → · Palette generator →