#644FBB#644FBB

#644FBB is a mid, vivid violet. Relative luminance 0.119; OKLCH L 50.7% C 0.163 H 288.1°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#644FBB
RGB	rgb(100, 79, 187)
HSL	hsl(252, 44%, 52%)
HSV	hsv(252, 58%, 73%)
CMYK	cmyk(46.5%, 57.8%, 0%, 26.7%)
CIE-LAB	lab(41.04, 35.96, -54.30)
CIE-LCH	lch(41.04, 65.13, 303.52°)
OKLab	oklab(50.67% 0.0506 -0.155)
OKLCH	oklch(50.67% 0.163 288.1)
XYZ	xyz(17.0186, 11.8885, 48.4021)
Luminance	0.1189 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.76

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FBB #A6BB4F

analogous

#4F70BB #644FBB #9A4FBB

triadic

#644FBB #BB644F #4FBB64

tetradic

#644FBB #BB4F70 #A6BB4F #4FBB9A

square

#644FBB #BB4F70 #A6BB4F #4FBB9A

split-complementary

#644FBB #BB9A4F #70BB4F

monochromatic

#342868 #4B3994 #644FBB #8B7BCC #B2A7DD

Accessibility & contrast

On white

6.22

#644FBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#644FBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FBB

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FBB	#FFFFFF	#000000	##FFFFFF
##644FBB	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063BF

Deuteranopia (green-blind)

#035EB9

Tritanopia (blue-blind)

#48677D

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #644fbb;
/* rgb */ color: rgb(100, 79, 187);
/* oklch */ color: oklch(50.7% 0.163 288.1);

Tailwind

colors: {
  custom: {
    50: '#9681d0',
    500: '#644fbb',
    950: '#000000',
  },
}

SCSS

$custom: #644fbb;
$custom-light: #9681d0;
$custom-dark: #000000;

JSON

{
  "hex": "#644fbb",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 187
  },
  "hsl": {
    "h": 251.667,
    "s": 44.262,
    "l": 52.157
  },
  "oklch": {
    "l": 0.50666,
    "c": 0.16303,
    "h": 288.1
  },
  "luminance": 0.11889
}

Semantic roles & 50–950 ramp

primary

#644FBB

secondary

#C1CA9B

accent

#D454BB

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A14

muted

#7E7C82

Preview Lab

Preview with #644FBB

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

Preview Lab → · Contrast checker → · Palette generator →