#644BB3#644BB3

#644BB3 is a mid, vivid violet. Relative luminance 0.110; OKLCH L 49.4% C 0.158 H 290.5°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#644BB3
RGB	rgb(100, 75, 179)
HSL	hsl(254, 41%, 50%)
HSV	hsv(254, 58%, 70%)
CMYK	cmyk(44.1%, 58.1%, 0%, 29.8%)
CIE-LAB	lab(39.57, 36.00, -51.96)
CIE-LCH	lch(39.57, 63.21, 304.71°)
OKLab	oklab(49.41% 0.0554 -0.1481)
OKLCH	oklch(49.41% 0.158 290.5)
XYZ	xyz(15.9060, 10.9956, 43.9234)
Luminance	0.1100 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644BB3 #9AB34B

analogous

#4B66B3 #644BB3 #984BB3

triadic

#644BB3 #B3644B #4BB364

tetradic

#644BB3 #B34B66 #9AB34B #4BB398

square

#644BB3 #B34B66 #9AB34B #4BB398

split-complementary

#644BB3 #B3984B #66B34B

monochromatic

#34275D #4C3988 #644BB3 #8976C5 #AEA1D8

Accessibility & contrast

On white

6.56

#644BB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#644BB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644BB3

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644BB3	#FFFFFF	#000000	##FFFFFF
##644BB3	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#045FB6

Deuteranopia (green-blind)

#0F5BB1

Tritanopia (blue-blind)

#4D6278

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #644bb3;
/* rgb */ color: rgb(100, 75, 179);
/* oklch */ color: oklch(49.4% 0.158 290.5);

Tailwind

colors: {
  custom: {
    50: '#957eca',
    500: '#644bb3',
    950: '#000000',
  },
}

SCSS

$custom: #644bb3;
$custom-light: #957eca;
$custom-dark: #000000;

JSON

{
  "hex": "#644bb3",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 179
  },
  "hsl": {
    "h": 254.423,
    "s": 40.945,
    "l": 49.804
  },
  "oklch": {
    "l": 0.49413,
    "c": 0.15813,
    "h": 290.5
  },
  "luminance": 0.10996
}

Semantic roles & 50–950 ramp

primary

#644BB3

secondary

#B9C495

accent

#D157B4

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644BB3

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

Preview Lab → · Contrast checker → · Palette generator →