#644BA5#644BA5

#644BA5 is a mid, vivid violet. Relative luminance 0.105; OKLCH L 48.4% C 0.139 H 293.3°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#644BA5
RGB	rgb(100, 75, 165)
HSL	hsl(257, 38%, 47%)
HSV	hsv(257, 55%, 65%)
CMYK	cmyk(39.4%, 54.5%, 0%, 35.3%)
CIE-LAB	lab(38.65, 31.97, -45.14)
CIE-LCH	lch(38.65, 55.32, 305.31°)
OKLab	oklab(48.44% 0.0552 -0.1281)
OKLCH	oklch(48.44% 0.139 293.3)
XYZ	xyz(14.5613, 10.4577, 36.8414)
Luminance	0.1046 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644BA5 #8CA54B

analogous

#4B5FA5 #644BA5 #914BA5

triadic

#644BA5 #A5644B #4BA564

tetradic

#644BA5 #A54B5F #8CA54B #4BA591

square

#644BA5 #A54B5F #8CA54B #4BA591

split-complementary

#644BA5 #A5914B #5FA54B

monochromatic

#312551 #4B387B #644BA5 #856FBE #A99AD1

Accessibility & contrast

On white

6.79

#644BA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#644BA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644BA5

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644BA5	#FFFFFF	#000000	##FFFFFF
##644BA5	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#225CA8

Deuteranopia (green-blind)

#2859A3

Tritanopia (blue-blind)

#535E71

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #644ba5;
/* rgb */ color: rgb(100, 75, 165);
/* oklch */ color: oklch(48.4% 0.139 293.3);

Tailwind

colors: {
  custom: {
    50: '#947ec0',
    500: '#644ba5',
    950: '#000000',
  },
}

SCSS

$custom: #644ba5;
$custom-light: #947ec0;
$custom-dark: #000000;

JSON

{
  "hex": "#644ba5",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 165
  },
  "hsl": {
    "h": 256.667,
    "s": 37.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.48437,
    "c": 0.13943,
    "h": 293.3
  },
  "luminance": 0.10458
}

Semantic roles & 50–950 ramp

primary

#644BA5

secondary

#B0BD8F

accent

#CD5AAD

background

#F9F7FB

surface

#F2EEF7

border

#CCC9D0

text

#0D0A12

muted

#7E7C81

Preview Lab

Preview with #644BA5

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

Preview Lab → · Contrast checker → · Palette generator →