#644FDD#644FDD

#644FDD is a mid, highly saturated blue. Relative luminance 0.135; OKLCH L 53.3% C 0.207 H 283.6°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#644FDD
RGB	rgb(100, 79, 221)
HSL	hsl(249, 68%, 59%)
HSV	hsv(249, 64%, 87%)
CMYK	cmyk(54.8%, 64.3%, 0%, 13.3%)
CIE-LAB	lab(43.54, 46.12, -69.87)
CIE-LCH	lch(43.54, 83.72, 303.43°)
OKLab	oklab(53.28% 0.0486 -0.2008)
OKLCH	oklch(53.28% 0.207 283.6)
XYZ	xyz(21.0987, 13.5205, 69.8905)
Luminance	0.1352 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FDD #C8DD4F

analogous

#4F81DD #644FDD #AB4FDD

triadic

#644FDD #DD644F #4FDD64

tetradic

#644FDD #DD4F81 #C8DD4F #4FDDAB

square

#644FDD #DD4F81 #C8DD4F #4FDDAB

split-complementary

#644FDD #DDAB4F #81DD4F

monochromatic

#2F1D95 #3F27C8 #644FDD #9182E7 #BEB6F1

Accessibility & contrast

On white

5.67

#644FDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#644FDD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FDD

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FDD	#FFFFFF	#000000	##FFFFFF
##644FDD	1.00	5.67	3.70	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BE1

Deuteranopia (green-blind)

#0062DA

Tritanopia (blue-blind)

#2C728F

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #644fdd;
/* rgb */ color: rgb(100, 79, 221);
/* oklch */ color: oklch(53.3% 0.207 283.6);

Tailwind

colors: {
  custom: {
    50: '#9b82e9',
    500: '#644fdd',
    950: '#000000',
  },
}

SCSS

$custom: #644fdd;
$custom-light: #9b82e9;
$custom-dark: #000000;

JSON

{
  "hex": "#644fdd",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 221
  },
  "hsl": {
    "h": 248.873,
    "s": 67.619,
    "l": 58.824
  },
  "oklch": {
    "l": 0.53279,
    "c": 0.20657,
    "h": 283.6
  },
  "luminance": 0.13522
}

Semantic roles & 50–950 ramp

primary

#644FDD

secondary

#D8E0A8

accent

#EA3DD1

background

#FAF8FE

surface

#F4EFFD

border

#CECAD5

text

#0F0A16

muted

#7F7C84

Preview Lab

Preview with #644FDD

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

Preview Lab → · Contrast checker → · Palette generator →