#644CEE#644CEE

#644CEE is a mid, highly saturated blue. Relative luminance 0.141; OKLCH L 54.3% C 0.231 H 282.2°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#644CEE
RGB	rgb(100, 76, 238)
HSL	hsl(249, 83%, 62%)
HSV	hsv(249, 68%, 93%)
CMYK	cmyk(58%, 68.1%, 0%, 6.7%)
CIE-LAB	lab(44.30, 52.85, -78.25)
CIE-LCH	lch(44.30, 94.43, 304.03°)
OKLab	oklab(54.26% 0.0489 -0.2254)
OKLCH	oklch(54.26% 0.231 282.2)
XYZ	xyz(23.2678, 14.0497, 82.3581)
Luminance	0.1405 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644CEE #D6EE4C

analogous

#4C85EE #644CEE #B54CEE

triadic

#644CEE #EE644C #4CEE64

tetradic

#644CEE #EE4C85 #D6EE4C #4CEEB5

square

#644CEE #EE4C85 #D6EE4C #4CEEB5

split-complementary

#644CEE #EEB54C #85EE4C

monochromatic

#2811AF #3516E7 #644CEE #9484F3 #C5BCF9

Accessibility & contrast

On white

5.51

#644CEE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#644CEE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CEE

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CEE	#FFFFFF	#000000	##FFFFFF
##644CEE	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006EF3

Deuteranopia (green-blind)

#0063EB

Tritanopia (blue-blind)

#057797

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #644cee;
/* rgb */ color: rgb(100, 76, 238);
/* oklch */ color: oklch(54.3% 0.231 282.2);

Tailwind

colors: {
  custom: {
    50: '#9e80f5',
    500: '#644cee',
    950: '#000000',
  },
}

SCSS

$custom: #644cee;
$custom-light: #9e80f5;
$custom-dark: #000000;

JSON

{
  "hex": "#644cee",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 238
  },
  "hsl": {
    "h": 248.889,
    "s": 82.653,
    "l": 61.569
  },
  "oklch": {
    "l": 0.54259,
    "c": 0.23061,
    "h": 282.2
  },
  "luminance": 0.14051
}

Semantic roles & 50–950 ramp

primary

#644CEE

secondary

#E0E9AD

accent

#DF06BF

background

#FAF7FF

surface

#F4EEFF

border

#CEC9D7

text

#100A17

muted

#7F7C85

Preview Lab

Preview with #644CEE

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

Preview Lab → · Contrast checker → · Palette generator →