#645CF6#645CF6

#645CF6 is a mid, highly saturated blue. Relative luminance 0.170; OKLCH L 57.3% C 0.222 H 279.1°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#645CF6
RGB	rgb(100, 92, 246)
HSL	hsl(243, 90%, 66%)
HSV	hsv(243, 63%, 96%)
CMYK	cmyk(59.3%, 62.6%, 0%, 3.5%)
CIE-LAB	lab(48.28, 46.30, -76.24)
CIE-LCH	lch(48.28, 89.20, 301.27°)
OKLab	oklab(57.33% 0.035 -0.2194)
OKLCH	oklch(57.33% 0.222 279.1)
XYZ	xyz(25.7119, 17.0156, 89.1003)
Luminance	0.1702 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CF6 #EEF65C

analogous

#5CA1F6 #645CF6 #B15CF6

triadic

#645CF6 #F6645C #5CF664

tetradic

#645CF6 #F65CA1 #EEF65C #5CF6B1

square

#645CF6 #F65CA1 #EEF65C #5CF6B1

split-complementary

#645CF6 #F6B15C #A1F65C

monochromatic

#150BCC #2D22F3 #645CF6 #9B96F9 #D2D0FC

Accessibility & contrast

On white

4.77

#645CF6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#645CF6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CF6

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CF6	#FFFFFF	#000000	##FFFFFF
##645CF6	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0079FB

Deuteranopia (green-blind)

#006CF3

Tritanopia (blue-blind)

#0083A1

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #645cf6;
/* rgb */ color: rgb(100, 92, 246);
/* oklch */ color: oklch(57.3% 0.222 279.1);

Tailwind

colors: {
  custom: {
    50: '#9e8bfa',
    500: '#645cf6',
    950: '#000000',
  },
}

SCSS

$custom: #645cf6;
$custom-light: #9e8bfa;
$custom-dark: #000000;

JSON

{
  "hex": "#645cf6",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 246
  },
  "hsl": {
    "h": 243.117,
    "s": 89.535,
    "l": 66.275
  },
  "oklch": {
    "l": 0.57334,
    "c": 0.2222,
    "h": 279.1
  },
  "luminance": 0.17017
}

Semantic roles & 50–950 ramp

primary

#645CF6

secondary

#EDF0BE

accent

#E600DA

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #645CF6

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

Preview Lab → · Contrast checker → · Palette generator →