#644EB3#644EB3

#644EB3 is a mid, vivid violet. Relative luminance 0.114; OKLCH L 49.9% C 0.154 H 289.7°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#644EB3
RGB	rgb(100, 78, 179)
HSL	hsl(253, 40%, 50%)
HSV	hsv(253, 56%, 70%)
CMYK	cmyk(44.1%, 56.4%, 0%, 29.8%)
CIE-LAB	lab(40.27, 34.21, -50.84)
CIE-LCH	lch(40.27, 61.28, 303.93°)
OKLab	oklab(49.92% 0.0518 -0.1448)
OKLCH	oklch(49.92% 0.154 289.7)
XYZ	xyz(16.1143, 11.4122, 43.9928)
Luminance	0.1141 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644EB3 #9DB34E

analogous

#4E6BB3 #644EB3 #964EB3

triadic

#644EB3 #B3644E #4EB364

tetradic

#644EB3 #B34E6B #9DB34E #4EB396

square

#644EB3 #B34E6B #9DB34E #4EB396

split-complementary

#644EB3 #B3964E #6BB34E

monochromatic

#34285E #4C3B89 #644EB3 #8979C5 #AFA4D8

Accessibility & contrast

On white

6.40

#644EB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#644EB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644EB3

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644EB3	#FFFFFF	#000000	##FFFFFF
##644EB3	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1561B6

Deuteranopia (green-blind)

#195DB1

Tritanopia (blue-blind)

#4D6479

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #644eb3;
/* rgb */ color: rgb(100, 78, 179);
/* oklch */ color: oklch(49.9% 0.154 289.7);

Tailwind

colors: {
  custom: {
    50: '#9580ca',
    500: '#644eb3',
    950: '#000000',
  },
}

SCSS

$custom: #644eb3;
$custom-light: #9580ca;
$custom-dark: #000000;

JSON

{
  "hex": "#644eb3",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 179
  },
  "hsl": {
    "h": 253.069,
    "s": 39.921,
    "l": 50.392
  },
  "oklch": {
    "l": 0.49924,
    "c": 0.15381,
    "h": 289.7
  },
  "luminance": 0.11413
}

Semantic roles & 50–950 ramp

primary

#644EB3

secondary

#BBC598

accent

#D058B6

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644EB3

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

Preview Lab → · Contrast checker → · Palette generator →