#641B8F#641B8F

#641B8F is a dark, vivid violet. Relative luminance 0.055; OKLCH L 40.3% C 0.178 H 308.8°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#641B8F
RGB	rgb(100, 27, 143)
HSL	hsl(278, 68%, 33%)
HSV	hsv(278, 81%, 56%)
CMYK	cmyk(30.1%, 81.1%, 0%, 43.9%)
CIE-LAB	lab(28.05, 50.83, -48.89)
CIE-LCH	lch(28.05, 70.52, 316.12°)
OKLab	oklab(40.28% 0.1115 -0.1389)
OKLCH	oklch(40.28% 0.178 308.8)
XYZ	xyz(10.6044, 5.4766, 26.4797)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641B8F #468F1B

analogous

#2A1B8F #641B8F #8F1B80

triadic

#641B8F #8F641B #1B8F64

tetradic

#641B8F #8F2A1B #468F1B #1B808F

square

#641B8F #8F2A1B #468F1B #1B808F

split-complementary

#641B8F #808F1B #1B8F2A

monochromatic

#1C0828 #40115C #641B8F #8825C2 #A548DC

Accessibility & contrast

On white

10.02

#641B8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#641B8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641B8F

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641B8F	#FFFFFF	#000000	##FFFFFF
##641B8F	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F92

Deuteranopia (green-blind)

#00438D

Tritanopia (blue-blind)

#5D3955

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #641b8f;
/* rgb */ color: rgb(100, 27, 143);
/* oklch */ color: oklch(40.3% 0.178 308.8);

Tailwind

colors: {
  custom: {
    50: '#9561b1',
    500: '#641b8f',
    950: '#000000',
  },
}

SCSS

$custom: #641b8f;
$custom-light: #9561b1;
$custom-dark: #000000;

JSON

{
  "hex": "#641b8f",
  "rgb": {
    "r": 100,
    "g": 27,
    "b": 143
  },
  "hsl": {
    "h": 277.759,
    "s": 68.235,
    "l": 33.333
  },
  "oklch": {
    "l": 0.40283,
    "c": 0.17814,
    "h": 308.8
  },
  "luminance": 0.05476
}

Semantic roles & 50–950 ramp

primary

#641B8F

secondary

#74BE48

accent

#EB3D7D

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #641B8F

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

Preview Lab → · Contrast checker → · Palette generator →