#645D96#645D96

#645D96 is a mid, moderate blue. Relative luminance 0.127; OKLCH L 51.0% C 0.089 H 288.4°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX#645D96
RGBrgb(100, 93, 150)
HSLhsl(247, 23%, 48%)
HSVhsv(247, 38%, 59%)
CMYKcmyk(33.3%, 38%, 0%, 41.2%)
CIE-LABlab(42.37, 16.64, -30.27)
CIE-LCHlch(42.37, 34.55, 298.79°)
OKLaboklab(50.96% 0.0282 -0.0846)
OKLCHoklch(50.96% 0.089 288.4)
XYZxyz(14.6735, 12.7397, 30.5342)
Luminance0.1274 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#645D96 #8F965D
analogous
#5D7396 #645D96 #805D96
triadic
#645D96 #96645D #5D9664
tetradic
#645D96 #965D73 #8F965D #5D9680
square
#645D96 #965D73 #8F965D #5D9680
split-complementary
#645D96 #96805D #73965D
monochromatic
#322E4A #4B4670 #645D96 #8680B0 #AAA6C8

Accessibility & contrast

On white

5.92
#645D96 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.55
#645D96 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645D96
5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##645D96#FFFFFF#000000##FFFFFF
##645D961.005.923.555.92
#FFFFFF5.921.0021.001.00
#0000003.5521.001.0021.00
##FFFFFF5.921.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4C6598
Deuteranopia (green-blind)
#4C6395
Tritanopia (blue-blind)
#586772
Achromatopsia (no color)
#646464

Design tokens & code

CSS
--color: #645d96;
/* rgb */ color: rgb(100, 93, 150);
/* oklch */ color: oklch(51.0% 0.089 288.4);
Tailwind
colors: {
  custom: {
    50: '#928bb5',
    500: '#645d96',
    950: '#000000',
  },
}
SCSS
$custom: #645d96;
$custom-light: #928bb5;
$custom-dark: #000000;
JSON
{
  "hex": "#645d96",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 150
  },
  "hsl": {
    "h": 247.368,
    "s": 23.457,
    "l": 47.647
  },
  "oklch": {
    "l": 0.50964,
    "c": 0.08922,
    "h": 288.4
  },
  "luminance": 0.1274
}

Semantic roles & 50–950 ramp

primary
#645D96
secondary
#B2B699
accent
#C068B5
background
#F9F8FB
surface
#F1F0F6
border
#CBCBD0
text
#0D0B11
muted
#7E7C80

Preview Lab

Preview with #645D96

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

Preview Lab → · Contrast checker → · Palette generator →

#645D96 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva