#645DF6#645DF6

#645DF6 is a mid, highly saturated blue. Relative luminance 0.172; OKLCH L 57.5% C 0.221 H 278.9°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#645DF6
RGB	rgb(100, 93, 246)
HSL	hsl(243, 89%, 66%)
HSV	hsv(243, 62%, 96%)
CMYK	cmyk(59.3%, 62.2%, 0%, 3.5%)
CIE-LAB	lab(48.50, 45.73, -75.89)
CIE-LCH	lch(48.50, 88.60, 301.07°)
OKLab	oklab(57.49% 0.0342 -0.2184)
OKLCH	oklch(57.49% 0.221 278.9)
XYZ	xyz(25.7991, 17.1899, 89.1294)
Luminance	0.1719 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DF6 #EFF65D

analogous

#5DA3F6 #645DF6 #B15DF6

triadic

#645DF6 #F6645D #5DF664

tetradic

#645DF6 #F65DA3 #EFF65D #5DF6B1

square

#645DF6 #F65DA3 #EFF65D #5DF6B1

split-complementary

#645DF6 #F6B15D #A3F65D

monochromatic

#140BCD #2D23F3 #645DF6 #9B97F9 #D3D1FC

Accessibility & contrast

On white

4.73

#645DF6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#645DF6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DF6

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DF6	#FFFFFF	#000000	##FFFFFF
##645DF6	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0079FB

Deuteranopia (green-blind)

#006DF3

Tritanopia (blue-blind)

#0083A1

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #645df6;
/* rgb */ color: rgb(100, 93, 246);
/* oklch */ color: oklch(57.5% 0.221 278.9);

Tailwind

colors: {
  custom: {
    50: '#9e8bfa',
    500: '#645df6',
    950: '#000000',
  },
}

SCSS

$custom: #645df6;
$custom-light: #9e8bfa;
$custom-dark: #000000;

JSON

{
  "hex": "#645df6",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 246
  },
  "hsl": {
    "h": 242.745,
    "s": 89.474,
    "l": 66.471
  },
  "oklch": {
    "l": 0.57494,
    "c": 0.22104,
    "h": 278.9
  },
  "luminance": 0.17192
}

Semantic roles & 50–950 ramp

primary

#645DF6

secondary

#EEF0BF

accent

#E600DB

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #645DF6

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

Preview Lab → · Contrast checker → · Palette generator →