#644EA3#644EA3

#644EA3 is a mid, vivid violet. Relative luminance 0.108; OKLCH L 48.8% C 0.132 H 292.8°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#644EA3
RGB	rgb(100, 78, 163)
HSL	hsl(256, 35%, 47%)
HSV	hsv(256, 52%, 64%)
CMYK	cmyk(38.7%, 52.1%, 0%, 36.1%)
CIE-LAB	lab(39.25, 29.59, -42.99)
CIE-LCH	lch(39.25, 52.19, 304.53°)
OKLab	oklab(48.84% 0.0511 -0.1218)
OKLCH	oklch(48.84% 0.132 292.8)
XYZ	xyz(14.5890, 10.8021, 35.9596)
Luminance	0.1080 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644EA3 #8DA34E

analogous

#4E63A3 #644EA3 #8E4EA3

triadic

#644EA3 #A3644E #4EA364

tetradic

#644EA3 #A34E63 #8DA34E #4EA38E

square

#644EA3 #A34E63 #8DA34E #4EA38E

split-complementary

#644EA3 #A38E4E #63A34E

monochromatic

#312650 #4B3A7A #644EA3 #8572BC #A99CD0

Accessibility & contrast

On white

6.64

#644EA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#644EA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644EA3

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644EA3	#FFFFFF	#000000	##FFFFFF
##644EA3	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B5EA6

Deuteranopia (green-blind)

#2F5BA1

Tritanopia (blue-blind)

#545F71

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #644ea3;
/* rgb */ color: rgb(100, 78, 163);
/* oklch */ color: oklch(48.8% 0.132 292.8);

Tailwind

colors: {
  custom: {
    50: '#9480bf',
    500: '#644ea3',
    950: '#000000',
  },
}

SCSS

$custom: #644ea3;
$custom-light: #9480bf;
$custom-dark: #000000;

JSON

{
  "hex": "#644ea3",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 163
  },
  "hsl": {
    "h": 255.529,
    "s": 35.27,
    "l": 47.255
  },
  "oklch": {
    "l": 0.48838,
    "c": 0.13206,
    "h": 292.8
  },
  "luminance": 0.10802
}

Semantic roles & 50–950 ramp

primary

#644EA3

secondary

#B1BC91

accent

#CB5CAF

background

#F9F7FB

surface

#F2EEF7

border

#CCC9D0

text

#0D0A12

muted

#7E7C81

Preview Lab

Preview with #644EA3

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

Preview Lab → · Contrast checker → · Palette generator →