#644BB7#644BB7

#644BB7 is a mid, vivid violet. Relative luminance 0.112; OKLCH L 49.7% C 0.163 H 289.8°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#644BB7
RGB	rgb(100, 75, 183)
HSL	hsl(254, 43%, 51%)
HSV	hsv(254, 59%, 72%)
CMYK	cmyk(45.4%, 59%, 0%, 28.2%)
CIE-LAB	lab(39.85, 37.16, -53.87)
CIE-LCH	lch(39.85, 65.45, 304.60°)
OKLab	oklab(49.7% 0.0553 -0.1537)
OKLCH	oklch(49.7% 0.163 289.8)
XYZ	xyz(16.3164, 11.1598, 46.0849)
Luminance	0.1116 (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

#644BB7 #9EB74B

analogous

#4B68B7 #644BB7 #9A4BB7

triadic

#644BB7 #B7644B #4BB764

tetradic

#644BB7 #B74B68 #9EB74B #4BB79A

square

#644BB7 #B74B68 #9EB74B #4BB79A

split-complementary

#644BB7 #B79A4B #68B74B

monochromatic

#342761 #4C388D #644BB7 #8A77C8 #AFA2DA

Accessibility & contrast

On white

6.50

#644BB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#644BB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644BB7

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644BB7	#FFFFFF	#000000	##FFFFFF
##644BB7	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BB

Deuteranopia (green-blind)

#005BB5

Tritanopia (blue-blind)

#4B637A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #644bb7;
/* rgb */ color: rgb(100, 75, 183);
/* oklch */ color: oklch(49.7% 0.163 289.8);

Tailwind

colors: {
  custom: {
    50: '#967ecd',
    500: '#644bb7',
    950: '#000000',
  },
}

SCSS

$custom: #644bb7;
$custom-light: #967ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#644bb7",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 183
  },
  "hsl": {
    "h": 253.889,
    "s": 42.857,
    "l": 50.588
  },
  "oklch": {
    "l": 0.49703,
    "c": 0.16338,
    "h": 289.8
  },
  "luminance": 0.1116
}

Semantic roles & 50–950 ramp

primary

#644BB7

secondary

#BCC797

accent

#D355B6

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A14

muted

#7E7C82

Preview Lab

Preview with #644BB7

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

Preview Lab → · Contrast checker → · Palette generator →