#644BE9#644BE9

#644BE9 is a mid, highly saturated blue. Relative luminance 0.136; OKLCH L 53.7% C 0.226 H 282.9°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX#644BE9
RGBrgb(100, 75, 233)
HSLhsl(249, 78%, 60%)
HSVhsv(249, 68%, 91%)
CMYKcmyk(57.1%, 67.8%, 0%, 8.6%)
CIE-LABlab(43.69, 51.91, -76.44)
CIE-LCHlch(43.69, 92.40, 304.18°)
OKLaboklab(53.69% 0.0505 -0.22)
OKLCHoklch(53.69% 0.226 282.9)
XYZxyz(22.4750, 13.6232, 78.5202)
Luminance0.1363 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644BE9 #D0E94B
analogous
#4B81E9 #644BE9 #B34BE9
triadic
#644BE9 #E9644B #4BE964
tetradic
#644BE9 #E94B81 #D0E94B #4BE9B3
square
#644BE9 #E94B81 #D0E94B #4BE9B3
split-complementary
#644BE9 #E9B34B #81E94B
monochromatic
#2B14A5 #391BDC #644BE9 #9382F0 #C2B8F6

Accessibility & contrast

On white

5.64
#644BE9 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.73
#644BE9 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644BE9
5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644BE9#FFFFFF#000000##FFFFFF
##644BE91.005.643.735.64
#FFFFFF5.641.0021.001.00
#0000003.7321.001.0021.00
##FFFFFF5.641.0021.001.00

Color blindness preview

Protanopia (red-blind)
#006CEE
Deuteranopia (green-blind)
#0062E6
Tritanopia (blue-blind)
#187494
Achromatopsia (no color)
#676767

Design tokens & code

CSS
--color: #644be9;
/* rgb */ color: rgb(100, 75, 233);
/* oklch */ color: oklch(53.7% 0.226 282.9);
Tailwind
colors: {
  custom: {
    50: '#9d7ff1',
    500: '#644be9',
    950: '#000000',
  },
}
SCSS
$custom: #644be9;
$custom-light: #9d7ff1;
$custom-dark: #000000;
JSON
{
  "hex": "#644be9",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 233
  },
  "hsl": {
    "h": 249.494,
    "s": 78.218,
    "l": 60.392
  },
  "oklch": {
    "l": 0.53688,
    "c": 0.22576,
    "h": 282.9
  },
  "luminance": 0.13625
}

Semantic roles & 50–950 ramp

primary
#644BE9
secondary
#DDE6AA
accent
#DA0BBA
background
#FAF7FE
surface
#F4EEFD
border
#CEC9D5
text
#100A17
muted
#7F7C85

Preview Lab

Preview with #644BE9

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

Preview Lab → · Contrast checker → · Palette generator →

#644BE9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva