#645CE6#645CE6

#645CE6 is a mid, highly saturated blue. Relative luminance 0.161; OKLCH L 56.1% C 0.202 H 280.3°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#645CE6
RGB	rgb(100, 92, 230)
HSL	hsl(243, 73%, 63%)
HSV	hsv(243, 60%, 90%)
CMYK	cmyk(56.5%, 60%, 0%, 9.8%)
CIE-LAB	lab(47.07, 41.33, -69.22)
CIE-LCH	lch(47.07, 80.62, 300.84°)
OKLab	oklab(56.07% 0.036 -0.1988)
OKLCH	oklch(56.07% 0.202 280.3)
XYZ	xyz(23.3611, 16.0752, 76.7194)
Luminance	0.1608 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CE6 #DEE65C

analogous

#5C99E6 #645CE6 #A95CE6

triadic

#645CE6 #E6645C #5CE664

tetradic

#645CE6 #E65C99 #DEE65C #5CE6A9

square

#645CE6 #E65C99 #DEE65C #5CE6A9

split-complementary

#645CE6 #E6A95C #99E65C

monochromatic

#231BAD #3227DE #645CE6 #9691EE #C9C6F6

Accessibility & contrast

On white

4.98

#645CE6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#645CE6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CE6

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CE6	#FFFFFF	#000000	##FFFFFF
##645CE6	1.00	4.98	4.22	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075EB

Deuteranopia (green-blind)

#006AE3

Tritanopia (blue-blind)

#1A7D98

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #645ce6;
/* rgb */ color: rgb(100, 92, 230);
/* oklch */ color: oklch(56.1% 0.202 280.3);

Tailwind

colors: {
  custom: {
    50: '#9b8aef',
    500: '#645ce6',
    950: '#000000',
  },
}

SCSS

$custom: #645ce6;
$custom-light: #9b8aef;
$custom-dark: #000000;

JSON

{
  "hex": "#645ce6",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 230
  },
  "hsl": {
    "h": 243.478,
    "s": 73.404,
    "l": 63.137
  },
  "oklch": {
    "l": 0.56074,
    "c": 0.20204,
    "h": 280.3
  },
  "luminance": 0.16077
}

Semantic roles & 50–950 ramp

primary

#645CE6

secondary

#E5E8B6

accent

#D610CA

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #645CE6

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

Preview Lab → · Contrast checker → · Palette generator →