#644CCE#644CCE

#644CCE is a mid, vivid violet. Relative luminance 0.123; OKLCH L 51.6% C 0.192 H 286.0°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#644CCE
RGB	rgb(100, 76, 206)
HSL	hsl(251, 57%, 55%)
HSV	hsv(251, 63%, 81%)
CMYK	cmyk(51.5%, 63.1%, 0%, 19.2%)
CIE-LAB	lab(41.74, 43.35, -64.20)
CIE-LCH	lch(41.74, 77.46, 304.03°)
OKLab	oklab(51.61% 0.0529 -0.1841)
OKLCH	oklch(51.61% 0.192 286)
XYZ	xyz(18.9772, 12.3335, 59.7612)
Luminance	0.1233 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 4.90

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644CCE #B6CE4C

analogous

#4C75CE #644CCE #A54CCE

triadic

#644CCE #CE644C #4CCE64

tetradic

#644CCE #CE4C75 #B6CE4C #4CCEA5

square

#644CCE #CE4C75 #B6CE4C #4CCEA5

split-complementary

#644CCE #CEA54C #75CE4C

monochromatic

#33227D #472FAD #644CCE #8E7CDB #B7ACE8

Accessibility & contrast

On white

6.06

#644CCE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#644CCE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CCE

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CCE	#FFFFFF	#000000	##FFFFFF
##644CCE	1.00	6.06	3.47	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066D2

Deuteranopia (green-blind)

#005FCB

Tritanopia (blue-blind)

#3B6B86

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #644cce;
/* rgb */ color: rgb(100, 76, 206);
/* oklch */ color: oklch(51.6% 0.192 286.0);

Tailwind

colors: {
  custom: {
    50: '#997fde',
    500: '#644cce',
    950: '#000000',
  },
}

SCSS

$custom: #644cce;
$custom-light: #997fde;
$custom-dark: #000000;

JSON

{
  "hex": "#644cce",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 206
  },
  "hsl": {
    "h": 251.077,
    "s": 57.018,
    "l": 55.294
  },
  "oklch": {
    "l": 0.51614,
    "c": 0.19155,
    "h": 286
  },
  "luminance": 0.12334
}

Semantic roles & 50–950 ramp

primary

#644CCE

secondary

#CCD6A0

accent

#E048C4

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0F0A15

muted

#7E7C83

Preview Lab

Preview with #644CCE

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

Preview Lab → · Contrast checker → · Palette generator →