#644FD4#644FD4

#644FD4 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 52.6% C 0.195 H 284.7°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#644FD4
RGB	rgb(100, 79, 212)
HSL	hsl(249, 61%, 57%)
HSV	hsv(249, 63%, 83%)
CMYK	cmyk(52.8%, 62.7%, 0%, 16.9%)
CIE-LAB	lab(42.84, 43.42, -65.86)
CIE-LCH	lch(42.84, 78.88, 303.40°)
OKLab	oklab(52.56% 0.0495 -0.189)
OKLCH	oklch(52.56% 0.195 284.7)
XYZ	xyz(19.9316, 13.0537, 63.7439)
Luminance	0.1305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FD4 #BFD44F

analogous

#4F7CD4 #644FD4 #A74FD4

triadic

#644FD4 #D4644F #4FD464

tetradic

#644FD4 #D44F7C #BFD44F #4FD4A7

square

#644FD4 #D44F7C #BFD44F #4FD4A7

split-complementary

#644FD4 #D4A74F #7CD44F

monochromatic

#312187 #432DB9 #644FD4 #8F80E0 #BBB1EC

Accessibility & contrast

On white

5.82

#644FD4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#644FD4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FD4

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FD4	#FFFFFF	#000000	##FFFFFF
##644FD4	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D8

Deuteranopia (green-blind)

#0061D1

Tritanopia (blue-blind)

#366F8A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #644fd4;
/* rgb */ color: rgb(100, 79, 212);
/* oklch */ color: oklch(52.6% 0.195 284.7);

Tailwind

colors: {
  custom: {
    50: '#9981e2',
    500: '#644fd4',
    950: '#000000',
  },
}

SCSS

$custom: #644fd4;
$custom-light: #9981e2;
$custom-dark: #000000;

JSON

{
  "hex": "#644fd4",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 212
  },
  "hsl": {
    "h": 249.474,
    "s": 60.731,
    "l": 57.059
  },
  "oklch": {
    "l": 0.52559,
    "c": 0.19533,
    "h": 284.7
  },
  "luminance": 0.13055
}

Semantic roles & 50–950 ramp

primary

#644FD4

secondary

#D2DAA4

accent

#E444CB

background

#FAF8FE

surface

#F3EFFC

border

#CDCAD5

text

#0F0A15

muted

#7F7C84

Preview Lab

Preview with #644FD4

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

Preview Lab → · Contrast checker → · Palette generator →