#644DCC#644DCC

#644DCC is a mid, vivid violet. Relative luminance 0.124; OKLCH L 51.6% C 0.188 H 286.1°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#644DCC
RGB	rgb(100, 77, 204)
HSL	hsl(251, 55%, 55%)
HSV	hsv(251, 62%, 80%)
CMYK	cmyk(51%, 62.3%, 0%, 20%)
CIE-LAB	lab(41.81, 42.18, -62.93)
CIE-LCH	lch(41.81, 75.76, 303.83°)
OKLab	oklab(51.61% 0.0521 -0.1804)
OKLCH	oklch(51.61% 0.188 286.1)
XYZ	xyz(18.8053, 12.3758, 58.5129)
Luminance	0.1238 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.06

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644DCC #B5CC4D

analogous

#4D75CC #644DCC #A34DCC

triadic

#644DCC #CC644D #4DCC64

tetradic

#644DCC #CC4D75 #B5CC4D #4DCCA3

square

#644DCC #CC4D75 #B5CC4D #4DCCA3

split-complementary

#644DCC #CCA34D #75CC4D

monochromatic

#33237B #4731AB #644DCC #8D7DDA #B7ACE7

Accessibility & contrast

On white

6.04

#644DCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#644DCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644DCC

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644DCC	#FFFFFF	#000000	##FFFFFF
##644DCC	1.00	6.04	3.48	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066D0

Deuteranopia (green-blind)

#005FC9

Tritanopia (blue-blind)

#3D6B85

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #644dcc;
/* rgb */ color: rgb(100, 77, 204);
/* oklch */ color: oklch(51.6% 0.188 286.1);

Tailwind

colors: {
  custom: {
    50: '#9980dc',
    500: '#644dcc',
    950: '#000000',
  },
}

SCSS

$custom: #644dcc;
$custom-light: #9980dc;
$custom-dark: #000000;

JSON

{
  "hex": "#644dcc",
  "rgb": {
    "r": 100,
    "g": 77,
    "b": 204
  },
  "hsl": {
    "h": 250.866,
    "s": 55.459,
    "l": 55.098
  },
  "oklch": {
    "l": 0.51614,
    "c": 0.18775,
    "h": 286.1
  },
  "luminance": 0.12377
}

Semantic roles & 50–950 ramp

primary

#644DCC

secondary

#CBD5A0

accent

#DF49C4

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0F0A15

muted

#7E7C83

Preview Lab

Preview with #644DCC

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

Preview Lab → · Contrast checker → · Palette generator →