#641B8B#641B8B

#641B8B is a dark, vivid violet. Relative luminance 0.054; OKLCH L 40.0% C 0.174 H 310.2°. Best body text is #FFFFFF at 10.14:1 contrast (WCAG AA passes).

Color values

HEX	#641B8B
RGB	rgb(100, 27, 139)
HSL	hsl(279, 67%, 33%)
HSV	hsv(279, 81%, 55%)
CMYK	cmyk(28.1%, 80.6%, 0%, 45.5%)
CIE-LAB	lab(27.73, 49.94, -46.93)
CIE-LCH	lch(27.73, 68.53, 316.78°)
OKLab	oklab(39.96% 0.1125 -0.1331)
OKLCH	oklch(39.96% 0.174 310.2)
XYZ	xyz(10.3067, 5.3575, 24.9122)
Luminance	0.0536 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641B8B #428B1B

analogous

#2C1B8B #641B8B #8B1B7A

triadic

#641B8B #8B641B #1B8B64

tetradic

#641B8B #8B2C1B #428B1B #1B7A8B

square

#641B8B #8B2C1B #428B1B #1B7A8B

split-complementary

#641B8B #7A8B1B #1B8B2C

monochromatic

#1A0725 #3F1158 #641B8B #8925BE #A745DB

Accessibility & contrast

On white

10.14

#641B8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#641B8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641B8B

10.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641B8B	#FFFFFF	#000000	##FFFFFF
##641B8B	1.00	10.14	2.07	10.14
#FFFFFF	10.14	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8E

Deuteranopia (green-blind)

#004389

Tritanopia (blue-blind)

#5E3753

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #641b8b;
/* rgb */ color: rgb(100, 27, 139);
/* oklch */ color: oklch(40.0% 0.174 310.2);

Tailwind

colors: {
  custom: {
    50: '#9561ae',
    500: '#641b8b',
    950: '#000000',
  },
}

SCSS

$custom: #641b8b;
$custom-light: #9561ae;
$custom-dark: #000000;

JSON

{
  "hex": "#641b8b",
  "rgb": {
    "r": 100,
    "g": 27,
    "b": 139
  },
  "hsl": {
    "h": 279.107,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.39957,
    "c": 0.1743,
    "h": 310.2
  },
  "luminance": 0.05357
}

Semantic roles & 50–950 ramp

primary

#641B8B

secondary

#6FBC45

accent

#EA3D7A

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #641B8B

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

Preview Lab → · Contrast checker → · Palette generator →