#644BB6#644BB6

#644BB6 is a mid, vivid violet. Relative luminance 0.111; OKLCH L 49.6% C 0.162 H 290.0°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#644BB6
RGB	rgb(100, 75, 182)
HSL	hsl(254, 42%, 50%)
HSV	hsv(254, 59%, 71%)
CMYK	cmyk(45.1%, 58.8%, 0%, 28.6%)
CIE-LAB	lab(39.78, 36.87, -53.40)
CIE-LCH	lch(39.78, 64.89, 304.62°)
OKLab	oklab(49.63% 0.0553 -0.1523)
OKLCH	oklch(49.63% 0.162 290)
XYZ	xyz(16.2127, 11.1183, 45.5387)
Luminance	0.1112 (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

#644BB6 #9DB64B

analogous

#4B67B6 #644BB6 #994BB6

triadic

#644BB6 #B6644B #4BB664

tetradic

#644BB6 #B64B67 #9DB64B #4BB699

square

#644BB6 #B64B67 #9DB64B #4BB699

split-complementary

#644BB6 #B6994B #67B64B

monochromatic

#342760 #4C388B #644BB6 #8977C8 #AFA2D9

Accessibility & contrast

On white

6.51

#644BB6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#644BB6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644BB6

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644BB6	#FFFFFF	#000000	##FFFFFF
##644BB6	1.00	6.51	3.22	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BA

Deuteranopia (green-blind)

#025BB4

Tritanopia (blue-blind)

#4B6379

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #644bb6;
/* rgb */ color: rgb(100, 75, 182);
/* oklch */ color: oklch(49.6% 0.162 290.0);

Tailwind

colors: {
  custom: {
    50: '#967ecd',
    500: '#644bb6',
    950: '#000000',
  },
}

SCSS

$custom: #644bb6;
$custom-light: #967ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#644bb6",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 182
  },
  "hsl": {
    "h": 254.019,
    "s": 42.292,
    "l": 50.392
  },
  "oklch": {
    "l": 0.4963,
    "c": 0.16207,
    "h": 290
  },
  "luminance": 0.11119
}

Semantic roles & 50–950 ramp

primary

#644BB6

secondary

#BBC697

accent

#D256B5

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644BB6

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

Preview Lab → · Contrast checker → · Palette generator →