#644DD9#644DD9

#644DD9 is a mid, highly saturated blue. Relative luminance 0.130; OKLCH L 52.6% C 0.204 H 284.4°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#644DD9
RGB	rgb(100, 77, 217)
HSL	hsl(250, 65%, 58%)
HSV	hsv(250, 65%, 85%)
CMYK	cmyk(53.9%, 64.5%, 0%, 14.9%)
CIE-LAB	lab(42.80, 46.05, -68.79)
CIE-LCH	lch(42.80, 82.78, 303.80°)
OKLab	oklab(52.65% 0.0509 -0.1976)
OKLCH	oklch(52.65% 0.204 284.4)
XYZ	xyz(20.4300, 13.0257, 67.0699)
Luminance	0.1303 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644DD9 #C2D94D

analogous

#4D7CD9 #644DD9 #AA4DD9

triadic

#644DD9 #D9644D #4DD964

tetradic

#644DD9 #D94D7C #C2D94D #4DD9AA

square

#644DD9 #D94D7C #C2D94D #4DD9AA

split-complementary

#644DD9 #D9AA4D #7CD94D

monochromatic

#301E8D #4229C0 #644DD9 #907FE4 #BCB2EF

Accessibility & contrast

On white

5.82

#644DD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#644DD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644DD9

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644DD9	#FFFFFF	#000000	##FFFFFF
##644DD9	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)

#0069DD

Deuteranopia (green-blind)

#0061D6

Tritanopia (blue-blind)

#31708C

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #644dd9;
/* rgb */ color: rgb(100, 77, 217);
/* oklch */ color: oklch(52.6% 0.204 284.4);

Tailwind

colors: {
  custom: {
    50: '#9a80e6',
    500: '#644dd9',
    950: '#000000',
  },
}

SCSS

$custom: #644dd9;
$custom-light: #9a80e6;
$custom-dark: #000000;

JSON

{
  "hex": "#644dd9",
  "rgb": {
    "r": 100,
    "g": 77,
    "b": 217
  },
  "hsl": {
    "h": 249.857,
    "s": 64.815,
    "l": 57.647
  },
  "oklch": {
    "l": 0.52648,
    "c": 0.20403,
    "h": 284.4
  },
  "luminance": 0.13027
}

Semantic roles & 50–950 ramp

primary

#644DD9

secondary

#D4DDA5

accent

#E840CC

background

#FAF7FE

surface

#F4EEFC

border

#CEC9D5

text

#0F0A16

muted

#7F7C84

Preview Lab

Preview with #644DD9

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

Preview Lab → · Contrast checker → · Palette generator →