#644BA4#644BA4

#644BA4 is a mid, vivid violet. Relative luminance 0.104; OKLCH L 48.4% C 0.138 H 293.5°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#644BA4
RGB	rgb(100, 75, 164)
HSL	hsl(257, 37%, 47%)
HSV	hsv(257, 54%, 64%)
CMYK	cmyk(39%, 54.3%, 0%, 35.7%)
CIE-LAB	lab(38.59, 31.69, -44.64)
CIE-LCH	lch(38.59, 54.75, 305.37°)
OKLab	oklab(48.37% 0.0551 -0.1266)
OKLCH	oklch(48.37% 0.138 293.5)
XYZ	xyz(14.4707, 10.4215, 36.3639)
Luminance	0.1042 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644BA4 #8BA44B

analogous

#4B5FA4 #644BA4 #914BA4

triadic

#644BA4 #A4644B #4BA464

tetradic

#644BA4 #A44B5F #8BA44B #4BA491

square

#644BA4 #A44B5F #8BA44B #4BA491

split-complementary

#644BA4 #A4914B #5FA44B

monochromatic

#312550 #4A387A #644BA4 #856FBD #A999D0

Accessibility & contrast

On white

6.81

#644BA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#644BA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644BA4

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644BA4	#FFFFFF	#000000	##FFFFFF
##644BA4	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#245CA7

Deuteranopia (green-blind)

#2A59A2

Tritanopia (blue-blind)

#545D70

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #644ba4;
/* rgb */ color: rgb(100, 75, 164);
/* oklch */ color: oklch(48.4% 0.138 293.5);

Tailwind

colors: {
  custom: {
    50: '#947ebf',
    500: '#644ba4',
    950: '#000000',
  },
}

SCSS

$custom: #644ba4;
$custom-light: #947ebf;
$custom-dark: #000000;

JSON

{
  "hex": "#644ba4",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 164
  },
  "hsl": {
    "h": 256.854,
    "s": 37.238,
    "l": 46.863
  },
  "oklch": {
    "l": 0.4837,
    "c": 0.13807,
    "h": 293.5
  },
  "luminance": 0.10422
}

Semantic roles & 50–950 ramp

primary

#644BA4

secondary

#B0BD8E

accent

#CD5BAD

background

#F9F7FB

surface

#F2EEF7

border

#CCC9D0

text

#0D0A12

muted

#7E7C81

Preview Lab

Preview with #644BA4

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

Preview Lab → · Contrast checker → · Palette generator →