#644DDB#644DDB

#644DDB is a mid, highly saturated blue. Relative luminance 0.131; OKLCH L 52.8% C 0.206 H 284.2°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#644DDB
RGB	rgb(100, 77, 219)
HSL	hsl(250, 66%, 58%)
HSV	hsv(250, 65%, 86%)
CMYK	cmyk(54.3%, 64.8%, 0%, 14.1%)
CIE-LAB	lab(42.96, 46.65, -69.68)
CIE-LCH	lch(42.96, 83.85, 303.80°)
OKLab	oklab(52.81% 0.0507 -0.2002)
OKLCH	oklch(52.81% 0.207 284.2)
XYZ	xyz(20.6917, 13.1304, 68.4482)
Luminance	0.1313 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644DDB #C4DB4D

analogous

#4D7DDB #644DDB #AB4DDB

triadic

#644DDB #DB644D #4DDB64

tetradic

#644DDB #DB4D7D #C4DB4D #4DDBAB

square

#644DDB #DB4D7D #C4DB4D #4DDBAB

split-complementary

#644DDB #DBAB4D #7DDB4D

monochromatic

#301D90 #4127C3 #644DDB #9080E5 #BDB3F0

Accessibility & contrast

On white

5.79

#644DDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#644DDB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644DDB

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644DDB	#FFFFFF	#000000	##FFFFFF
##644DDB	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ADF

Deuteranopia (green-blind)

#0061D8

Tritanopia (blue-blind)

#2E718D

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #644ddb;
/* rgb */ color: rgb(100, 77, 219);
/* oklch */ color: oklch(52.8% 0.206 284.2);

Tailwind

colors: {
  custom: {
    50: '#9b80e7',
    500: '#644ddb',
    950: '#000000',
  },
}

SCSS

$custom: #644ddb;
$custom-light: #9b80e7;
$custom-dark: #000000;

JSON

{
  "hex": "#644ddb",
  "rgb": {
    "r": 100,
    "g": 77,
    "b": 219
  },
  "hsl": {
    "h": 249.718,
    "s": 66.355,
    "l": 58.039
  },
  "oklch": {
    "l": 0.52811,
    "c": 0.2065,
    "h": 284.2
  },
  "luminance": 0.13132
}

Semantic roles & 50–950 ramp

primary

#644DDB

secondary

#D5DEA6

accent

#E93FCE

background

#FAF7FE

surface

#F4EEFD

border

#CEC9D5

text

#0F0A16

muted

#7F7C84

Preview Lab

Preview with #644DDB

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

Preview Lab → · Contrast checker → · Palette generator →