#644EB4#644EB4

#644EB4 is a mid, vivid violet. Relative luminance 0.115; OKLCH L 50.0% C 0.155 H 289.5°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#644EB4
RGB	rgb(100, 78, 180)
HSL	hsl(253, 40%, 51%)
HSV	hsv(253, 57%, 71%)
CMYK	cmyk(44.4%, 56.7%, 0%, 29.4%)
CIE-LAB	lab(40.33, 34.50, -51.33)
CIE-LCH	lch(40.33, 61.84, 303.91°)
OKLab	oklab(49.99% 0.0518 -0.1462)
OKLCH	oklch(49.99% 0.155 289.5)
XYZ	xyz(16.2158, 11.4528, 44.5274)
Luminance	0.1145 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644EB4 #9EB44E

analogous

#4E6BB4 #644EB4 #974EB4

triadic

#644EB4 #B4644E #4EB464

tetradic

#644EB4 #B44E6B #9EB44E #4EB497

square

#644EB4 #B44E6B #9EB44E #4EB497

split-complementary

#644EB4 #B4974E #6BB44E

monochromatic

#34285F #4C3B8A #644EB4 #8A79C6 #AFA4D8

Accessibility & contrast

On white

6.38

#644EB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#644EB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644EB4

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644EB4	#FFFFFF	#000000	##FFFFFF
##644EB4	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1261B7

Deuteranopia (green-blind)

#175DB2

Tritanopia (blue-blind)

#4C6479

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #644eb4;
/* rgb */ color: rgb(100, 78, 180);
/* oklch */ color: oklch(50.0% 0.155 289.5);

Tailwind

colors: {
  custom: {
    50: '#9580cb',
    500: '#644eb4',
    950: '#000000',
  },
}

SCSS

$custom: #644eb4;
$custom-light: #9580cb;
$custom-dark: #000000;

JSON

{
  "hex": "#644eb4",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 180
  },
  "hsl": {
    "h": 252.941,
    "s": 40.476,
    "l": 50.588
  },
  "oklch": {
    "l": 0.49994,
    "c": 0.15514,
    "h": 289.5
  },
  "luminance": 0.11453
}

Semantic roles & 50–950 ramp

primary

#644EB4

secondary

#BCC698

accent

#D057B6

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644EB4

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

Preview Lab → · Contrast checker → · Palette generator →