#645AF4#645AF4

#645AF4 is a mid, highly saturated blue. Relative luminance 0.166; OKLCH L 56.9% C 0.222 H 279.5°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#645AF4
RGB	rgb(100, 90, 244)
HSL	hsl(244, 88%, 65%)
HSV	hsv(244, 63%, 96%)
CMYK	cmyk(59%, 63.1%, 0%, 4.3%)
CIE-LAB	lab(47.69, 46.84, -76.09)
CIE-LCH	lch(47.69, 89.35, 301.62°)
OKLab	oklab(56.86% 0.0368 -0.219)
OKLCH	oklch(56.86% 0.222 279.5)
XYZ	xyz(25.2356, 16.5515, 87.4353)
Luminance	0.1655 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645AF4 #EAF45A

analogous

#5A9DF4 #645AF4 #B15AF4

triadic

#645AF4 #F4645A #5AF464

tetradic

#645AF4 #F45A9D #EAF45A #5AF4B1

square

#645AF4 #F45A9D #EAF45A #5AF4B1

split-complementary

#645AF4 #F4B15A #9DF45A

monochromatic

#190DC6 #2E21F0 #645AF4 #9A93F8 #D0CDFC

Accessibility & contrast

On white

4.87

#645AF4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#645AF4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645AF4

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645AF4	#FFFFFF	#000000	##FFFFFF
##645AF4	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0077F9

Deuteranopia (green-blind)

#006BF1

Tritanopia (blue-blind)

#00819F

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #645af4;
/* rgb */ color: rgb(100, 90, 244);
/* oklch */ color: oklch(56.9% 0.222 279.5);

Tailwind

colors: {
  custom: {
    50: '#9e89f9',
    500: '#645af4',
    950: '#000000',
  },
}

SCSS

$custom: #645af4;
$custom-light: #9e89f9;
$custom-dark: #000000;

JSON

{
  "hex": "#645af4",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 244
  },
  "hsl": {
    "h": 243.896,
    "s": 87.5,
    "l": 65.49
  },
  "oklch": {
    "l": 0.56856,
    "c": 0.22206,
    "h": 279.5
  },
  "luminance": 0.16553
}

Semantic roles & 50–950 ramp

primary

#645AF4

secondary

#EBEFBB

accent

#E401D5

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #645AF4

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

Preview Lab → · Contrast checker → · Palette generator →