#644DD8#644DD8

#644DD8 is a mid, highly saturated blue. Relative luminance 0.130; OKLCH L 52.6% C 0.203 H 284.6°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#644DD8
RGB	rgb(100, 77, 216)
HSL	hsl(250, 64%, 57%)
HSV	hsv(250, 64%, 85%)
CMYK	cmyk(53.7%, 64.4%, 0%, 15.3%)
CIE-LAB	lab(42.72, 45.76, -68.34)
CIE-LCH	lch(42.72, 82.25, 303.80°)
OKLab	oklab(52.57% 0.051 -0.1963)
OKLCH	oklch(52.57% 0.203 284.6)
XYZ	xyz(20.3003, 12.9738, 66.3869)
Luminance	0.1298 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644DD8 #C1D84D

analogous

#4D7CD8 #644DD8 #A94DD8

triadic

#644DD8 #D8644D #4DD864

tetradic

#644DD8 #D84D7C #C1D84D #4DD8A9

square

#644DD8 #D84D7C #C1D84D #4DD8A9

split-complementary

#644DD8 #D8A94D #7CD84D

monochromatic

#311F8C #422ABE #644DD8 #907FE3 #BBB1EE

Accessibility & contrast

On white

5.84

#644DD8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#644DD8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644DD8

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644DD8	#FFFFFF	#000000	##FFFFFF
##644DD8	1.00	5.84	3.60	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069DC

Deuteranopia (green-blind)

#0060D5

Tritanopia (blue-blind)

#326F8C

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #644dd8;
/* rgb */ color: rgb(100, 77, 216);
/* oklch */ color: oklch(52.6% 0.203 284.6);

Tailwind

colors: {
  custom: {
    50: '#9a80e5',
    500: '#644dd8',
    950: '#000000',
  },
}

SCSS

$custom: #644dd8;
$custom-light: #9a80e5;
$custom-dark: #000000;

JSON

{
  "hex": "#644dd8",
  "rgb": {
    "r": 100,
    "g": 77,
    "b": 216
  },
  "hsl": {
    "h": 249.928,
    "s": 64.055,
    "l": 57.451
  },
  "oklch": {
    "l": 0.52567,
    "c": 0.20279,
    "h": 284.6
  },
  "luminance": 0.12975
}

Semantic roles & 50–950 ramp

primary

#644DD8

secondary

#D3DCA4

accent

#E741CC

background

#FAF7FE

surface

#F4EEFC

border

#CEC9D5

text

#0F0A16

muted

#7F7C84

Preview Lab

Preview with #644DD8

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

Preview Lab → · Contrast checker → · Palette generator →