#644EB0#644EB0

#644EB0 is a mid, vivid violet. Relative luminance 0.113; OKLCH L 49.7% C 0.150 H 290.2°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#644EB0
RGB	rgb(100, 78, 176)
HSL	hsl(253, 39%, 50%)
HSV	hsv(253, 56%, 69%)
CMYK	cmyk(43.2%, 55.7%, 0%, 31%)
CIE-LAB	lab(40.07, 33.33, -49.39)
CIE-LCH	lch(40.07, 59.59, 304.01°)
OKLab	oklab(49.71% 0.0518 -0.1405)
OKLCH	oklch(49.71% 0.15 290.2)
XYZ	xyz(15.8142, 11.2922, 42.4123)
Luminance	0.1129 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644EB0 #9AB04E

analogous

#4E69B0 #644EB0 #954EB0

triadic

#644EB0 #B0644E #4EB064

tetradic

#644EB0 #B04E69 #9AB04E #4EB095

square

#644EB0 #B04E69 #9AB04E #4EB095

split-complementary

#644EB0 #B0954E #69B04E

monochromatic

#34285B #4C3B86 #644EB0 #8978C3 #AEA2D6

Accessibility & contrast

On white

6.44

#644EB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#644EB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644EB0

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644EB0	#FFFFFF	#000000	##FFFFFF
##644EB0	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B60B3

Deuteranopia (green-blind)

#1F5CAE

Tritanopia (blue-blind)

#4E6377

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #644eb0;
/* rgb */ color: rgb(100, 78, 176);
/* oklch */ color: oklch(49.7% 0.150 290.2);

Tailwind

colors: {
  custom: {
    50: '#9580c8',
    500: '#644eb0',
    950: '#000000',
  },
}

SCSS

$custom: #644eb0;
$custom-light: #9580c8;
$custom-dark: #000000;

JSON

{
  "hex": "#644eb0",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 176
  },
  "hsl": {
    "h": 253.469,
    "s": 38.583,
    "l": 49.804
  },
  "oklch": {
    "l": 0.49714,
    "c": 0.14977,
    "h": 290.2
  },
  "luminance": 0.11293
}

Semantic roles & 50–950 ramp

primary

#644EB0

secondary

#B9C397

accent

#CF59B4

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644EB0

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

Preview Lab → · Contrast checker → · Palette generator →