#644CB6#644CB6

#644CB6 is a mid, vivid violet. Relative luminance 0.113; OKLCH L 49.8% C 0.161 H 289.7°. Best body text is #FFFFFF at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#644CB6
RGB	rgb(100, 76, 182)
HSL	hsl(254, 42%, 51%)
HSV	hsv(254, 58%, 71%)
CMYK	cmyk(45.1%, 58.2%, 0%, 28.6%)
CIE-LAB	lab(40.01, 36.28, -53.03)
CIE-LCH	lch(40.01, 64.25, 304.38°)
OKLab	oklab(49.8% 0.0542 -0.1512)
OKLCH	oklch(49.8% 0.161 289.7)
XYZ	xyz(16.2811, 11.2550, 45.5615)
Luminance	0.1126 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644CB6 #9EB64C

analogous

#4C69B6 #644CB6 #994CB6

triadic

#644CB6 #B6644C #4CB664

tetradic

#644CB6 #B64C69 #9EB64C #4CB699

square

#644CB6 #B64C69 #9EB64C #4CB699

split-complementary

#644CB6 #B6994C #69B64C

monochromatic

#342760 #4C398C #644CB6 #8A77C8 #AFA3D9

Accessibility & contrast

On white

6.46

#644CB6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#644CB6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CB6

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CB6	#FFFFFF	#000000	##FFFFFF
##644CB6	1.00	6.46	3.25	6.46
#FFFFFF	6.46	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BA

Deuteranopia (green-blind)

#085CB4

Tritanopia (blue-blind)

#4B6479

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #644cb6;
/* rgb */ color: rgb(100, 76, 182);
/* oklch */ color: oklch(49.8% 0.161 289.7);

Tailwind

colors: {
  custom: {
    50: '#967fcd',
    500: '#644cb6',
    950: '#000000',
  },
}

SCSS

$custom: #644cb6;
$custom-light: #967fcd;
$custom-dark: #000000;

JSON

{
  "hex": "#644cb6",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 182
  },
  "hsl": {
    "h": 253.585,
    "s": 42.063,
    "l": 50.588
  },
  "oklch": {
    "l": 0.49797,
    "c": 0.16066,
    "h": 289.7
  },
  "luminance": 0.11256
}

Semantic roles & 50–950 ramp

primary

#644CB6

secondary

#BCC697

accent

#D256B6

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644CB6

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

Preview Lab → · Contrast checker → · Palette generator →