#641D8E#641D8E

#641D8E is a dark, vivid violet. Relative luminance 0.055; OKLCH L 40.4% C 0.175 H 308.9°. Best body text is #FFFFFF at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#641D8E
RGB	rgb(100, 29, 142)
HSL	hsl(278, 66%, 34%)
HSV	hsv(278, 80%, 56%)
CMYK	cmyk(29.6%, 79.6%, 0%, 44.3%)
CIE-LAB	lab(28.22, 49.87, -47.99)
CIE-LCH	lch(28.22, 69.21, 316.10°)
OKLab	oklab(40.38% 0.1101 -0.1363)
OKLCH	oklch(40.38% 0.175 308.9)
XYZ	xyz(10.5764, 5.5412, 26.0983)
Luminance	0.0554 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641D8E #478E1D

analogous

#2B1D8E #641D8E #8E1D7F

triadic

#641D8E #8E641D #1D8E64

tetradic

#641D8E #8E2B1D #478E1D #1D7F8E

square

#641D8E #8E2B1D #478E1D #1D7F8E

split-complementary

#641D8E #7F8E1D #1D8E2B

monochromatic

#1C0828 #40135B #641D8E #8827C1 #A54BDA

Accessibility & contrast

On white

9.96

#641D8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#641D8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641D8E

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641D8E	#FFFFFF	#000000	##FFFFFF
##641D8E	1.00	9.96	2.11	9.96
#FFFFFF	9.96	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004091

Deuteranopia (green-blind)

#00438C

Tritanopia (blue-blind)

#5E3955

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #641d8e;
/* rgb */ color: rgb(100, 29, 142);
/* oklch */ color: oklch(40.4% 0.175 308.9);

Tailwind

colors: {
  custom: {
    50: '#9562b0',
    500: '#641d8e',
    950: '#000000',
  },
}

SCSS

$custom: #641d8e;
$custom-light: #9562b0;
$custom-dark: #000000;

JSON

{
  "hex": "#641d8e",
  "rgb": {
    "r": 100,
    "g": 29,
    "b": 142
  },
  "hsl": {
    "h": 277.699,
    "s": 66.082,
    "l": 33.529
  },
  "oklch": {
    "l": 0.40379,
    "c": 0.17517,
    "h": 308.9
  },
  "luminance": 0.05541
}

Semantic roles & 50–950 ramp

primary

#641D8E

secondary

#75BD4A

accent

#E93F7E

background

#F9F6FA

surface

#F2EBF5

border

#CCC6CF

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #641D8E

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

Preview Lab → · Contrast checker → · Palette generator →