#644BE5#644BE5

#644BE5 is a mid, highly saturated blue. Relative luminance 0.134; OKLCH L 53.3% C 0.221 H 283.4°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX#644BE5
RGBrgb(100, 75, 229)
HSLhsl(250, 75%, 60%)
HSVhsv(250, 67%, 90%)
CMYKcmyk(56.3%, 67.2%, 0%, 10.2%)
CIE-LABlab(43.36, 50.73, -74.72)
CIE-LCHlch(43.36, 90.31, 304.18°)
OKLaboklab(53.35% 0.0511 -0.215)
OKLCHoklch(53.35% 0.221 283.4)
XYZxyz(21.9101, 13.3973, 75.5449)
Luminance0.1340 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644BE5 #CCE54B
analogous
#4B7FE5 #644BE5 #B14BE5
triadic
#644BE5 #E5644B #4BE564
tetradic
#644BE5 #E54B7F #CCE54B #4BE5B1
square
#644BE5 #E54B7F #CCE54B #4BE5B1
split-complementary
#644BE5 #E5B14B #7FE54B
monochromatic
#2D179F #3C1FD4 #644BE5 #9280ED #C0B6F4

Accessibility & contrast

On white

5.71
#644BE5 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.68
#644BE5 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644BE5
5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644BE5#FFFFFF#000000##FFFFFF
##644BE51.005.713.685.71
#FFFFFF5.711.0021.001.00
#0000003.6821.001.0021.00
##FFFFFF5.711.0021.001.00

Color blindness preview

Protanopia (red-blind)
#006BEA
Deuteranopia (green-blind)
#0061E2
Tritanopia (blue-blind)
#207392
Achromatopsia (no color)
#666666

Design tokens & code

CSS
--color: #644be5;
/* rgb */ color: rgb(100, 75, 229);
/* oklch */ color: oklch(53.3% 0.221 283.4);
Tailwind
colors: {
  custom: {
    50: '#9c7fee',
    500: '#644be5',
    950: '#000000',
  },
}
SCSS
$custom: #644be5;
$custom-light: #9c7fee;
$custom-dark: #000000;
JSON
{
  "hex": "#644be5",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 229
  },
  "hsl": {
    "h": 249.74,
    "s": 74.757,
    "l": 59.608
  },
  "oklch": {
    "l": 0.53347,
    "c": 0.22098,
    "h": 283.4
  },
  "luminance": 0.13399
}

Semantic roles & 50–950 ramp

primary
#644BE5
secondary
#DAE4A8
accent
#F136D3
background
#FAF7FE
surface
#F4EEFD
border
#CEC9D5
text
#0F0A17
muted
#7F7C85

Preview Lab

Preview with #644BE5

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

Preview Lab → · Contrast checker → · Palette generator →

#644BE5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva