#645EF4#645EF4

#645EF4 is a mid, highly saturated blue. Relative luminance 0.172; OKLCH L 57.5% C 0.217 H 278.8°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#645EF4
RGB	rgb(100, 94, 244)
HSL	hsl(242, 87%, 66%)
HSV	hsv(242, 61%, 96%)
CMYK	cmyk(59%, 61.5%, 0%, 4.3%)
CIE-LAB	lab(48.57, 44.52, -74.66)
CIE-LCH	lch(48.57, 86.92, 300.81°)
OKLab	oklab(57.5% 0.0334 -0.2148)
OKLCH	oklch(57.5% 0.217 278.8)
XYZ	xyz(25.5822, 17.2445, 87.5509)
Luminance	0.1725 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EF4 #EEF45E

analogous

#5EA3F4 #645EF4 #AF5EF4

triadic

#645EF4 #F4645E #5EF464

tetradic

#645EF4 #F45EA3 #EEF45E #5EF4AF

square

#645EF4 #F45EA3 #EEF45E #5EF4AF

split-complementary

#645EF4 #F4AF5E #A3F45E

monochromatic

#150ECA #2D25F0 #645EF4 #9B97F8 #D2D1FC

Accessibility & contrast

On white

4.72

#645EF4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#645EF4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EF4

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EF4	#FFFFFF	#000000	##FFFFFF
##645EF4	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)

#0079F9

Deuteranopia (green-blind)

#006DF1

Tritanopia (blue-blind)

#0083A0

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #645ef4;
/* rgb */ color: rgb(100, 94, 244);
/* oklch */ color: oklch(57.5% 0.217 278.8);

Tailwind

colors: {
  custom: {
    50: '#9d8cf9',
    500: '#645ef4',
    950: '#000000',
  },
}

SCSS

$custom: #645ef4;
$custom-light: #9d8cf9;
$custom-dark: #000000;

JSON

{
  "hex": "#645ef4",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 244
  },
  "hsl": {
    "h": 242.4,
    "s": 87.209,
    "l": 66.275
  },
  "oklch": {
    "l": 0.57497,
    "c": 0.21736,
    "h": 278.8
  },
  "luminance": 0.17246
}

Semantic roles & 50–950 ramp

primary

#645EF4

secondary

#EDEFBE

accent

#E402DB

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #645EF4

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

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