#645AF7#645AF7

#645AF7 is a mid, highly saturated blue. Relative luminance 0.167; OKLCH L 57.1% C 0.226 H 279.3°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#645AF7
RGB	rgb(100, 90, 247)
HSL	hsl(244, 91%, 66%)
HSV	hsv(244, 64%, 97%)
CMYK	cmyk(59.5%, 63.6%, 0%, 3.1%)
CIE-LAB	lab(47.92, 47.76, -77.38)
CIE-LCH	lch(47.92, 90.93, 301.69°)
OKLab	oklab(57.1% 0.0366 -0.2228)
OKLCH	oklch(57.1% 0.226 279.3)
XYZ	xyz(25.6949, 16.7352, 89.8538)
Luminance	0.1674 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645AF7 #EDF75A

analogous

#5A9EF7 #645AF7 #B25AF7

triadic

#645AF7 #F7645A #5AF764

tetradic

#645AF7 #F75A9E #EDF75A #5AF7B2

square

#645AF7 #F75A9E #EDF75A #5AF7B2

split-complementary

#645AF7 #F7B25A #9EF75A

monochromatic

#160ACD #2D20F4 #645AF7 #9B94FA #D2CFFD

Accessibility & contrast

On white

4.83

#645AF7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#645AF7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645AF7

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645AF7	#FFFFFF	#000000	##FFFFFF
##645AF7	1.00	4.83	4.35	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0078FC

Deuteranopia (green-blind)

#006CF4

Tritanopia (blue-blind)

#0082A0

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #645af7;
/* rgb */ color: rgb(100, 90, 247);
/* oklch */ color: oklch(57.1% 0.226 279.3);

Tailwind

colors: {
  custom: {
    50: '#9e89fb',
    500: '#645af7',
    950: '#000000',
  },
}

SCSS

$custom: #645af7;
$custom-light: #9e89fb;
$custom-dark: #000000;

JSON

{
  "hex": "#645af7",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 247
  },
  "hsl": {
    "h": 243.822,
    "s": 90.751,
    "l": 66.078
  },
  "oklch": {
    "l": 0.571,
    "c": 0.22576,
    "h": 279.3
  },
  "luminance": 0.16737
}

Semantic roles & 50–950 ramp

primary

#645AF7

secondary

#EDF0BD

accent

#E600D7

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C18

muted

#7F7D86

Preview Lab

Preview with #645AF7

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

Preview Lab → · Contrast checker → · Palette generator →