#645FF0#645FF0

#645FF0 is a mid, highly saturated blue. Relative luminance 0.172; OKLCH L 57.3% C 0.211 H 278.9°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#645FF0
RGB	rgb(100, 95, 240)
HSL	hsl(242, 83%, 66%)
HSV	hsv(242, 60%, 94%)
CMYK	cmyk(58.3%, 60.4%, 0%, 5.9%)
CIE-LAB	lab(48.49, 42.69, -72.54)
CIE-LCH	lch(48.49, 84.17, 300.47°)
OKLab	oklab(57.35% 0.0328 -0.2085)
OKLCH	oklch(57.35% 0.211 278.9)
XYZ	xyz(25.0709, 17.1832, 84.4167)
Luminance	0.1719 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FF0 #EBF05F

analogous

#5FA2F0 #645FF0 #AC5FF0

triadic

#645FF0 #F0645F #5FF064

tetradic

#645FF0 #F05FA2 #EBF05F #5FF0AC

square

#645FF0 #F05FA2 #EBF05F #5FF0AC

split-complementary

#645FF0 #F0AC5F #A2F05F

monochromatic

#1812C2 #2E27EB #645FF0 #9A97F5 #D0CFFA

Accessibility & contrast

On white

4.73

#645FF0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#645FF0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FF0

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FF0	#FFFFFF	#000000	##FFFFFF
##645FF0	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)

#0079F5

Deuteranopia (green-blind)

#006DED

Tritanopia (blue-blind)

#00839F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #645ff0;
/* rgb */ color: rgb(100, 95, 240);
/* oklch */ color: oklch(57.3% 0.211 278.9);

Tailwind

colors: {
  custom: {
    50: '#9d8df6',
    500: '#645ff0',
    950: '#000000',
  },
}

SCSS

$custom: #645ff0;
$custom-light: #9d8df6;
$custom-dark: #000000;

JSON

{
  "hex": "#645ff0",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 240
  },
  "hsl": {
    "h": 242.069,
    "s": 82.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.57346,
    "c": 0.21111,
    "h": 278.9
  },
  "luminance": 0.17185
}

Semantic roles & 50–950 ramp

primary

#645FF0

secondary

#ECEEBD

accent

#DF06D8

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #645FF0

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

Preview Lab → · Contrast checker → · Palette generator →