#641C90#641C90

#641C90 is a dark, vivid violet. Relative luminance 0.056; OKLCH L 40.5% C 0.178 H 308.3°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#641C90
RGB	rgb(100, 28, 144)
HSL	hsl(277, 67%, 34%)
HSV	hsv(277, 81%, 56%)
CMYK	cmyk(30.6%, 80.6%, 0%, 43.5%)
CIE-LAB	lab(28.26, 50.69, -49.17)
CIE-LCH	lch(28.26, 70.62, 315.87°)
OKLab	oklab(40.45% 0.1105 -0.1397)
OKLCH	oklch(40.45% 0.178 308.3)
XYZ	xyz(10.7038, 5.5536, 26.8882)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641C90 #48901C

analogous

#2A1C90 #641C90 #901C82

triadic

#641C90 #90641C #1C9064

tetradic

#641C90 #902A1C #48901C #1C8290

square

#641C90 #902A1C #48901C #1C8290

split-complementary

#641C90 #82901C #1C902A

monochromatic

#1D082A #40125D #641C90 #8826C3 #A54ADC

Accessibility & contrast

On white

9.95

#641C90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#641C90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641C90

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641C90	#FFFFFF	#000000	##FFFFFF
##641C90	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004093

Deuteranopia (green-blind)

#00438E

Tritanopia (blue-blind)

#5D3A56

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #641c90;
/* rgb */ color: rgb(100, 28, 144);
/* oklch */ color: oklch(40.5% 0.178 308.3);

Tailwind

colors: {
  custom: {
    50: '#9562b1',
    500: '#641c90',
    950: '#000000',
  },
}

SCSS

$custom: #641c90;
$custom-light: #9562b1;
$custom-dark: #000000;

JSON

{
  "hex": "#641c90",
  "rgb": {
    "r": 100,
    "g": 28,
    "b": 144
  },
  "hsl": {
    "h": 277.241,
    "s": 67.442,
    "l": 33.725
  },
  "oklch": {
    "l": 0.40452,
    "c": 0.17812,
    "h": 308.3
  },
  "luminance": 0.05553
}

Semantic roles & 50–950 ramp

primary

#641C90

secondary

#76BE4A

accent

#EA3D7F

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #641C90

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

Preview Lab → · Contrast checker → · Palette generator →