#645FF6#645FF6

#645FF6 is a mid, highly saturated blue. Relative luminance 0.175; OKLCH L 57.8% C 0.219 H 278.5°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#645FF6
RGB	rgb(100, 95, 246)
HSL	hsl(242, 89%, 67%)
HSV	hsv(242, 61%, 96%)
CMYK	cmyk(59.3%, 61.4%, 0%, 3.5%)
CIE-LAB	lab(48.94, 44.56, -75.17)
CIE-LCH	lch(48.94, 87.38, 300.66°)
OKLab	oklab(57.82% 0.0325 -0.2163)
OKLCH	oklch(57.82% 0.219 278.5)
XYZ	xyz(25.9770, 17.5456, 89.1887)
Luminance	0.1755 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FF6 #F1F65F

analogous

#5FA6F6 #645FF6 #B05FF6

triadic

#645FF6 #F6645F #5FF664

tetradic

#645FF6 #F65FA6 #F1F65F #5FF6B0

square

#645FF6 #F65FA6 #F1F65F #5FF6B0

split-complementary

#645FF6 #F6B05F #A6F65F

monochromatic

#120CCF #2C25F3 #645FF6 #9C99F9 #D4D3FD

Accessibility & contrast

On white

4.66

#645FF6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#645FF6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #645FF6

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FF6	#FFFFFF	#000000	##FFFFFF
##645FF6	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AFB

Deuteranopia (green-blind)

#006EF3

Tritanopia (blue-blind)

#0084A2

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #645ff6;
/* rgb */ color: rgb(100, 95, 246);
/* oklch */ color: oklch(57.8% 0.219 278.5);

Tailwind

colors: {
  custom: {
    50: '#9e8dfa',
    500: '#645ff6',
    950: '#000000',
  },
}

SCSS

$custom: #645ff6;
$custom-light: #9e8dfa;
$custom-dark: #000000;

JSON

{
  "hex": "#645ff6",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 246
  },
  "hsl": {
    "h": 241.987,
    "s": 89.349,
    "l": 66.863
  },
  "oklch": {
    "l": 0.57817,
    "c": 0.21868,
    "h": 278.5
  },
  "luminance": 0.17548
}

Semantic roles & 50–950 ramp

primary

#645FF6

secondary

#EFF1C0

accent

#E600DE

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #645FF6

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

Preview Lab → · Contrast checker → · Palette generator →