#644FB0#644FB0

#644FB0 is a mid, vivid violet. Relative luminance 0.114; OKLCH L 49.9% C 0.148 H 289.9°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#644FB0
RGB	rgb(100, 79, 176)
HSL	hsl(253, 38%, 50%)
HSV	hsv(253, 55%, 69%)
CMYK	cmyk(43.2%, 55.1%, 0%, 31%)
CIE-LAB	lab(40.30, 32.73, -49.01)
CIE-LCH	lch(40.30, 58.94, 303.73°)
OKLab	oklab(49.89% 0.0505 -0.1394)
OKLCH	oklch(49.89% 0.148 289.9)
XYZ	xyz(15.8858, 11.4353, 42.4361)
Luminance	0.1144 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FB0 #9BB04F

analogous

#4F6AB0 #644FB0 #954FB0

triadic

#644FB0 #B0644F #4FB064

tetradic

#644FB0 #B04F6A #9BB04F #4FB095

square

#644FB0 #B04F6A #9BB04F #4FB095

split-complementary

#644FB0 #B0954F #6AB04F

monochromatic

#34295C #4C3C86 #644FB0 #8979C3 #AEA3D6

Accessibility & contrast

On white

6.39

#644FB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#644FB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FB0

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FB0	#FFFFFF	#000000	##FFFFFF
##644FB0	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E61B3

Deuteranopia (green-blind)

#215DAE

Tritanopia (blue-blind)

#4E6478

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #644fb0;
/* rgb */ color: rgb(100, 79, 176);
/* oklch */ color: oklch(49.9% 0.148 289.9);

Tailwind

colors: {
  custom: {
    50: '#9581c8',
    500: '#644fb0',
    950: '#000000',
  },
}

SCSS

$custom: #644fb0;
$custom-light: #9581c8;
$custom-dark: #000000;

JSON

{
  "hex": "#644fb0",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 176
  },
  "hsl": {
    "h": 252.99,
    "s": 38.039,
    "l": 50
  },
  "oklch": {
    "l": 0.49889,
    "c": 0.1483,
    "h": 289.9
  },
  "luminance": 0.11436
}

Semantic roles & 50–950 ramp

primary

#644FB0

secondary

#BAC398

accent

#CE5AB5

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644FB0

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

Preview Lab → · Contrast checker → · Palette generator →