#645AAA#645AAA

#645AAA is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.5% C 0.123 H 287.0°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#645AAA
RGB	rgb(100, 90, 170)
HSL	hsl(248, 32%, 51%)
HSV	hsv(248, 47%, 67%)
CMYK	cmyk(41.2%, 47.1%, 0%, 33.3%)
CIE-LAB	lab(42.65, 24.23, -41.72)
CIE-LCH	lch(42.65, 48.25, 300.15°)
OKLab	oklab(51.52% 0.036 -0.118)
OKLCH	oklch(51.52% 0.123 287)
XYZ	xyz(16.1654, 12.9234, 39.6651)
Luminance	0.1292 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645AAA #A0AA5A

analogous

#5A78AA #645AAA #8C5AAA

triadic

#645AAA #AA645A #5AAA64

tetradic

#645AAA #AA5A78 #A0AA5A #5AAA8C

square

#645AAA #AA5A78 #A0AA5A #5AAA8C

split-complementary

#645AAA #AA8C5A #78AA5A

monochromatic

#342F5B #4C4483 #645AAA #8A82BF #B0ABD4

Accessibility & contrast

On white

5.86

#645AAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#645AAA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645AAA

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645AAA	#FFFFFF	#000000	##FFFFFF
##645AAA	1.00	5.86	3.58	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C67AD

Deuteranopia (green-blind)

#3B63A8

Tritanopia (blue-blind)

#506A7A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #645aaa;
/* rgb */ color: rgb(100, 90, 170);
/* oklch */ color: oklch(51.5% 0.123 287.0);

Tailwind

colors: {
  custom: {
    50: '#9488c4',
    500: '#645aaa',
    950: '#000000',
  },
}

SCSS

$custom: #645aaa;
$custom-light: #9488c4;
$custom-dark: #000000;

JSON

{
  "hex": "#645aaa",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 170
  },
  "hsl": {
    "h": 247.5,
    "s": 32,
    "l": 50.98
  },
  "oklch": {
    "l": 0.51523,
    "c": 0.12337,
    "h": 287
  },
  "luminance": 0.12924
}

Semantic roles & 50–950 ramp

primary

#645AAA

secondary

#BDC29E

accent

#C860BB

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0D0B12

muted

#7E7C81

Preview Lab

Preview with #645AAA

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

Preview Lab → · Contrast checker → · Palette generator →