#645DF7#645DF7

#645DF7 is a mid, highly saturated blue. Relative luminance 0.173; OKLCH L 57.6% C 0.222 H 278.8°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#645DF7
RGB	rgb(100, 93, 247)
HSL	hsl(243, 91%, 67%)
HSV	hsv(243, 62%, 97%)
CMYK	cmyk(59.5%, 62.3%, 0%, 3.1%)
CIE-LAB	lab(48.58, 46.04, -76.32)
CIE-LCH	lch(48.58, 89.13, 301.10°)
OKLab	oklab(57.57% 0.0341 -0.2196)
OKLCH	oklch(57.57% 0.222 278.8)
XYZ	xyz(25.9530, 17.2515, 89.9399)
Luminance	0.1725 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DF7 #F0F75D

analogous

#5DA3F7 #645DF7 #B15DF7

triadic

#645DF7 #F7645D #5DF764

tetradic

#645DF7 #F75DA3 #F0F75D #5DF7B1

square

#645DF7 #F75DA3 #F0F75D #5DF7B1

split-complementary

#645DF7 #F7B15D #A3F75D

monochromatic

#130ACF #2C23F4 #645DF7 #9C97FA #D4D2FD

Accessibility & contrast

On white

4.72

#645DF7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#645DF7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DF7

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DF7	#FFFFFF	#000000	##FFFFFF
##645DF7	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AFC

Deuteranopia (green-blind)

#006DF4

Tritanopia (blue-blind)

#0084A2

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #645df7;
/* rgb */ color: rgb(100, 93, 247);
/* oklch */ color: oklch(57.6% 0.222 278.8);

Tailwind

colors: {
  custom: {
    50: '#9e8bfb',
    500: '#645df7',
    950: '#000000',
  },
}

SCSS

$custom: #645df7;
$custom-light: #9e8bfb;
$custom-dark: #000000;

JSON

{
  "hex": "#645df7",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 247
  },
  "hsl": {
    "h": 242.727,
    "s": 90.588,
    "l": 66.667
  },
  "oklch": {
    "l": 0.57574,
    "c": 0.22228,
    "h": 278.8
  },
  "luminance": 0.17253
}

Semantic roles & 50–950 ramp

primary

#645DF7

secondary

#EEF1BF

accent

#E600DB

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C18

muted

#7F7D86

Preview Lab

Preview with #645DF7

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

Preview Lab → · Contrast checker → · Palette generator →