#645CEC#645CEC

#645CEC is a mid, highly saturated blue. Relative luminance 0.164; OKLCH L 56.5% C 0.210 H 279.8°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#645CEC
RGB	rgb(100, 92, 236)
HSL	hsl(243, 79%, 64%)
HSV	hsv(243, 61%, 93%)
CMYK	cmyk(57.6%, 61%, 0%, 7.5%)
CIE-LAB	lab(47.52, 43.20, -71.88)
CIE-LCH	lch(47.52, 83.86, 301.01°)
OKLab	oklab(56.54% 0.0357 -0.2066)
OKLCH	oklch(56.54% 0.21 279.8)
XYZ	xyz(24.2182, 16.4181, 81.2334)
Luminance	0.1642 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CEC #E4EC5C

analogous

#5C9CEC #645CEC #AC5CEC

triadic

#645CEC #EC645C #5CEC64

tetradic

#645CEC #EC5C9C #E4EC5C #5CECAC

square

#645CEC #EC5C9C #E4EC5C #5CECAC

split-complementary

#645CEC #ECAC5C #9CEC5C

monochromatic

#1F15B8 #3025E6 #645CEC #9893F2 #CCCAF9

Accessibility & contrast

On white

4.90

#645CEC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#645CEC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CEC

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CEC	#FFFFFF	#000000	##FFFFFF
##645CEC	1.00	4.90	4.28	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076F1

Deuteranopia (green-blind)

#006BE9

Tritanopia (blue-blind)

#067F9B

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #645cec;
/* rgb */ color: rgb(100, 92, 236);
/* oklch */ color: oklch(56.5% 0.210 279.8);

Tailwind

colors: {
  custom: {
    50: '#9c8bf3',
    500: '#645cec',
    950: '#000000',
  },
}

SCSS

$custom: #645cec;
$custom-light: #9c8bf3;
$custom-dark: #000000;

JSON

{
  "hex": "#645cec",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 236
  },
  "hsl": {
    "h": 243.333,
    "s": 79.121,
    "l": 64.314
  },
  "oklch": {
    "l": 0.5654,
    "c": 0.20968,
    "h": 279.8
  },
  "luminance": 0.1642
}

Semantic roles & 50–950 ramp

primary

#645CEC

secondary

#E8EBB9

accent

#DB0AD0

background

#FAF8FF

surface

#F4F0FE

border

#CECBD6

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #645CEC

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

Preview Lab → · Contrast checker → · Palette generator →