#645EF6#645EF6

#645EF6 is a mid, highly saturated blue. Relative luminance 0.174; OKLCH L 57.7% C 0.220 H 278.7°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#645EF6
RGB	rgb(100, 94, 246)
HSL	hsl(242, 89%, 67%)
HSV	hsv(242, 62%, 96%)
CMYK	cmyk(59.3%, 61.8%, 0%, 3.5%)
CIE-LAB	lab(48.72, 45.15, -75.53)
CIE-LCH	lch(48.72, 87.99, 300.87°)
OKLab	oklab(57.66% 0.0333 -0.2173)
OKLCH	oklch(57.66% 0.22 278.7)
XYZ	xyz(25.8875, 17.3666, 89.1588)
Luminance	0.1737 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EF6 #F0F65E

analogous

#5EA4F6 #645EF6 #B05EF6

triadic

#645EF6 #F6645E #5EF664

tetradic

#645EF6 #F65EA4 #F0F65E #5EF6B0

square

#645EF6 #F65EA4 #F0F65E #5EF6B0

split-complementary

#645EF6 #F6B05E #A4F65E

monochromatic

#130CCE #2C24F3 #645EF6 #9C98F9 #D4D2FC

Accessibility & contrast

On white

4.69

#645EF6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#645EF6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EF6

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EF6	#FFFFFF	#000000	##FFFFFF
##645EF6	1.00	4.69	4.47	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AFB

Deuteranopia (green-blind)

#006EF3

Tritanopia (blue-blind)

#0084A1

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #645ef6;
/* rgb */ color: rgb(100, 94, 246);
/* oklch */ color: oklch(57.7% 0.220 278.7);

Tailwind

colors: {
  custom: {
    50: '#9e8cfa',
    500: '#645ef6',
    950: '#000000',
  },
}

SCSS

$custom: #645ef6;
$custom-light: #9e8cfa;
$custom-dark: #000000;

JSON

{
  "hex": "#645ef6",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 246
  },
  "hsl": {
    "h": 242.368,
    "s": 89.412,
    "l": 66.667
  },
  "oklch": {
    "l": 0.57655,
    "c": 0.21986,
    "h": 278.7
  },
  "luminance": 0.17369
}

Semantic roles & 50–950 ramp

primary

#645EF6

secondary

#EEF0BF

accent

#E600DC

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #645EF6

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

Preview Lab → · Contrast checker → · Palette generator →