#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
RGB	rgb(100, 93, 150)
HSL	hsl(247, 23%, 48%)
HSV	hsv(247, 38%, 59%)
CMYK	cmyk(33.3%, 38%, 0%, 41.2%)
CIE-LAB	lab(42.37, 16.64, -30.27)
CIE-LCH	lch(42.37, 34.55, 298.79°)
OKLab	oklab(50.96% 0.0282 -0.0846)
OKLCH	oklch(50.96% 0.089 288.4)
XYZ	xyz(14.6735, 12.7397, 30.5342)
Luminance	0.1274 (WCAG relative)
Temperature	cool
Family	blue

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
##645D96	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

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 →