#644CA3#644CA3

#644CA3 is a mid, vivid violet. Relative luminance 0.105; OKLCH L 48.5% C 0.135 H 293.4°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#644CA3
RGB	rgb(100, 76, 163)
HSL	hsl(257, 36%, 47%)
HSV	hsv(257, 53%, 64%)
CMYK	cmyk(38.7%, 53.4%, 0%, 36.1%)
CIE-LAB	lab(38.76, 30.80, -43.76)
CIE-LCH	lch(38.76, 53.52, 305.14°)
OKLab	oklab(48.48% 0.0538 -0.124)
OKLCH	oklch(48.48% 0.135 293.4)
XYZ	xyz(14.4491, 10.5222, 35.9129)
Luminance	0.1052 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644CA3 #8BA34C

analogous

#4C5FA3 #644CA3 #904CA3

triadic

#644CA3 #A3644C #4CA364

tetradic

#644CA3 #A34C5F #8BA34C #4CA390

square

#644CA3 #A34C5F #8BA34C #4CA390

split-complementary

#644CA3 #A3904C #5FA34C

monochromatic

#312550 #4A3979 #644CA3 #8570BC #A99AD0

Accessibility & contrast

On white

6.76

#644CA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#644CA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CA3

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CA3	#FFFFFF	#000000	##FFFFFF
##644CA3	1.00	6.76	3.10	6.76
#FFFFFF	6.76	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#275CA6

Deuteranopia (green-blind)

#2C5AA1

Tritanopia (blue-blind)

#545E70

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #644ca3;
/* rgb */ color: rgb(100, 76, 163);
/* oklch */ color: oklch(48.5% 0.135 293.4);

Tailwind

colors: {
  custom: {
    50: '#947ebf',
    500: '#644ca3',
    950: '#000000',
  },
}

SCSS

$custom: #644ca3;
$custom-light: #947ebf;
$custom-dark: #000000;

JSON

{
  "hex": "#644ca3",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 163
  },
  "hsl": {
    "h": 256.552,
    "s": 36.402,
    "l": 46.863
  },
  "oklch": {
    "l": 0.4848,
    "c": 0.13517,
    "h": 293.4
  },
  "luminance": 0.10523
}

Semantic roles & 50–950 ramp

primary

#644CA3

secondary

#B0BC8F

accent

#CC5BAD

background

#F9F7FB

surface

#F2EEF7

border

#CCC9D0

text

#0D0A12

muted

#7E7C81

Preview Lab

Preview with #644CA3

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

Preview Lab → · Contrast checker → · Palette generator →