#644BE6#644BE6

#644BE6 is a mid, highly saturated blue. Relative luminance 0.135; OKLCH L 53.4% C 0.222 H 283.3°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX#644BE6
RGBrgb(100, 75, 230)
HSLhsl(250, 76%, 60%)
HSVhsv(250, 67%, 90%)
CMYKcmyk(56.5%, 67.4%, 0%, 9.8%)
CIE-LABlab(43.44, 51.03, -75.15)
CIE-LCHlch(43.44, 90.84, 304.18°)
OKLaboklab(53.43% 0.051 -0.2163)
OKLCHoklch(53.43% 0.222 283.3)
XYZxyz(22.0501, 13.4533, 76.2824)
Luminance0.1346 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644BE6 #CDE64B
analogous
#4B80E6 #644BE6 #B14BE6
triadic
#644BE6 #E6644B #4BE664
tetradic
#644BE6 #E64B80 #CDE64B #4BE6B1
square
#644BE6 #E64B80 #CDE64B #4BE6B1
split-complementary
#644BE6 #E6B14B #80E64B
monochromatic
#2D16A0 #3B1ED6 #644BE6 #9281ED #C1B6F5

Accessibility & contrast

On white

5.69
#644BE6 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.69
#644BE6 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644BE6
5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644BE6#FFFFFF#000000##FFFFFF
##644BE61.005.693.695.69
#FFFFFF5.691.0021.001.00
#0000003.6921.001.0021.00
##FFFFFF5.691.0021.001.00

Color blindness preview

Protanopia (red-blind)
#006BEB
Deuteranopia (green-blind)
#0061E3
Tritanopia (blue-blind)
#1E7393
Achromatopsia (no color)
#676767

Design tokens & code

CSS
--color: #644be6;
/* rgb */ color: rgb(100, 75, 230);
/* oklch */ color: oklch(53.4% 0.222 283.3);
Tailwind
colors: {
  custom: {
    50: '#9c7fef',
    500: '#644be6',
    950: '#000000',
  },
}
SCSS
$custom: #644be6;
$custom-light: #9c7fef;
$custom-dark: #000000;
JSON
{
  "hex": "#644be6",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 230
  },
  "hsl": {
    "h": 249.677,
    "s": 75.61,
    "l": 59.804
  },
  "oklch": {
    "l": 0.53432,
    "c": 0.22218,
    "h": 283.3
  },
  "luminance": 0.13455
}

Semantic roles & 50–950 ramp

primary
#644BE6
secondary
#DBE4A8
accent
#F236D4
background
#FAF7FE
surface
#F4EEFD
border
#CEC9D5
text
#100A17
muted
#7F7C85

Preview Lab

Preview with #644BE6

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

Preview Lab → · Contrast checker → · Palette generator →

#644BE6 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva