#644DB3#644DB3

#644DB3 is a mid, vivid violet. Relative luminance 0.113; OKLCH L 49.8% C 0.155 H 290.0°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#644DB3
RGB	rgb(100, 77, 179)
HSL	hsl(254, 40%, 50%)
HSV	hsv(254, 57%, 70%)
CMYK	cmyk(44.1%, 57%, 0%, 29.8%)
CIE-LAB	lab(40.03, 34.80, -51.22)
CIE-LCH	lch(40.03, 61.93, 304.20°)
OKLab	oklab(49.75% 0.053 -0.1459)
OKLCH	oklch(49.75% 0.155 290)
XYZ	xyz(16.0438, 11.2712, 43.9693)
Luminance	0.1127 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644DB3 #9CB34D

analogous

#4D69B3 #644DB3 #974DB3

triadic

#644DB3 #B3644D #4DB364

tetradic

#644DB3 #B34D69 #9CB34D #4DB397

square

#644DB3 #B34D69 #9CB34D #4DB397

split-complementary

#644DB3 #B3974D #69B34D

monochromatic

#34285E #4C3A89 #644DB3 #8978C5 #AFA3D8

Accessibility & contrast

On white

6.45

#644DB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#644DB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644DB3

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644DB3	#FFFFFF	#000000	##FFFFFF
##644DB3	1.00	6.45	3.25	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1060B6

Deuteranopia (green-blind)

#165CB1

Tritanopia (blue-blind)

#4D6378

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #644db3;
/* rgb */ color: rgb(100, 77, 179);
/* oklch */ color: oklch(49.8% 0.155 290.0);

Tailwind

colors: {
  custom: {
    50: '#957fca',
    500: '#644db3',
    950: '#000000',
  },
}

SCSS

$custom: #644db3;
$custom-light: #957fca;
$custom-dark: #000000;

JSON

{
  "hex": "#644db3",
  "rgb": {
    "r": 100,
    "g": 77,
    "b": 179
  },
  "hsl": {
    "h": 253.529,
    "s": 40.157,
    "l": 50.196
  },
  "oklch": {
    "l": 0.49752,
    "c": 0.15525,
    "h": 290
  },
  "luminance": 0.11272
}

Semantic roles & 50–950 ramp

primary

#644DB3

secondary

#BAC597

accent

#D058B5

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644DB3

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

Preview Lab → · Contrast checker → · Palette generator →