#644BB0#644BB0

#644BB0 is a mid, vivid violet. Relative luminance 0.109; OKLCH L 49.2% C 0.154 H 291.1°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#644BB0
RGB	rgb(100, 75, 176)
HSL	hsl(255, 40%, 49%)
HSV	hsv(255, 57%, 69%)
CMYK	cmyk(43.2%, 57.4%, 0%, 31%)
CIE-LAB	lab(39.37, 35.13, -50.52)
CIE-LCH	lch(39.37, 61.53, 304.81°)
OKLab	oklab(49.2% 0.0554 -0.1439)
OKLCH	oklch(49.2% 0.154 291.1)
XYZ	xyz(15.6059, 10.8756, 42.3428)
Luminance	0.1088 (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

#644BB0 #97B04B

analogous

#4B65B0 #644BB0 #974BB0

triadic

#644BB0 #B0644B #4BB064

tetradic

#644BB0 #B04B65 #97B04B #4BB097

square

#644BB0 #B04B65 #97B04B #4BB097

split-complementary

#644BB0 #B0974B #65B04B

monochromatic

#33265A #4C3985 #644BB0 #8874C4 #AD9FD6

Accessibility & contrast

On white

6.61

#644BB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#644BB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644BB0

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644BB0	#FFFFFF	#000000	##FFFFFF
##644BB0	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E5EB3

Deuteranopia (green-blind)

#175BAE

Tritanopia (blue-blind)

#4E6176

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #644bb0;
/* rgb */ color: rgb(100, 75, 176);
/* oklch */ color: oklch(49.2% 0.154 291.1);

Tailwind

colors: {
  custom: {
    50: '#957ec8',
    500: '#644bb0',
    950: '#000000',
  },
}

SCSS

$custom: #644bb0;
$custom-light: #957ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#644bb0",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 176
  },
  "hsl": {
    "h": 254.851,
    "s": 40.239,
    "l": 49.216
  },
  "oklch": {
    "l": 0.49198,
    "c": 0.15416,
    "h": 291.1
  },
  "luminance": 0.10876
}

Semantic roles & 50–950 ramp

primary

#644BB0

secondary

#B7C394

accent

#D058B2

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644BB0

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

Preview Lab → · Contrast checker → · Palette generator →