#644CDD#644CDD

#644CDD is a mid, highly saturated blue. Relative luminance 0.131; OKLCH L 52.8% C 0.210 H 284.1°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#644CDD
RGB	rgb(100, 76, 221)
HSL	hsl(250, 68%, 58%)
HSV	hsv(250, 66%, 87%)
CMYK	cmyk(54.8%, 65.6%, 0%, 13.3%)
CIE-LAB	lab(42.91, 47.81, -70.90)
CIE-LCH	lch(42.91, 85.51, 303.99°)
OKLab	oklab(52.83% 0.0513 -0.2038)
OKLCH	oklch(52.83% 0.21 284.1)
XYZ	xyz(20.8871, 13.0974, 69.8200)
Luminance	0.1310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644CDD #C5DD4C

analogous

#4C7CDD #644CDD #AC4CDD

triadic

#644CDD #DD644C #4CDD64

tetradic

#644CDD #DD4C7C #C5DD4C #4CDDAC

square

#644CDD #DD4C7C #C5DD4C #4CDDAC

split-complementary

#644CDD #DDAC4C #7CDD4C

monochromatic

#301C93 #4026C6 #644CDD #917FE7 #BDB3F1

Accessibility & contrast

On white

5.80

#644CDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#644CDD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CDD

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CDD	#FFFFFF	#000000	##FFFFFF
##644CDD	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AE1

Deuteranopia (green-blind)

#0061DA

Tritanopia (blue-blind)

#2C718E

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #644cdd;
/* rgb */ color: rgb(100, 76, 221);
/* oklch */ color: oklch(52.8% 0.210 284.1);

Tailwind

colors: {
  custom: {
    50: '#9b80e9',
    500: '#644cdd',
    950: '#000000',
  },
}

SCSS

$custom: #644cdd;
$custom-light: #9b80e9;
$custom-dark: #000000;

JSON

{
  "hex": "#644cdd",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 221
  },
  "hsl": {
    "h": 249.931,
    "s": 68.075,
    "l": 58.235
  },
  "oklch": {
    "l": 0.52825,
    "c": 0.21015,
    "h": 284.1
  },
  "luminance": 0.13099
}

Semantic roles & 50–950 ramp

primary

#644CDD

secondary

#D6DFA6

accent

#EB3DCE

background

#FAF7FE

surface

#F4EEFD

border

#CEC9D5

text

#0F0A16

muted

#7F7C84

Preview Lab

Preview with #644CDD

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

Preview Lab → · Contrast checker → · Palette generator →