#645BEC#645BEC

#645BEC is a mid, highly saturated blue. Relative luminance 0.162; OKLCH L 56.4% C 0.211 H 280.0°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#645BEC
RGB	rgb(100, 91, 236)
HSL	hsl(244, 79%, 64%)
HSV	hsv(244, 61%, 93%)
CMYK	cmyk(57.6%, 61.4%, 0%, 7.5%)
CIE-LAB	lab(47.30, 43.78, -72.24)
CIE-LCH	lch(47.30, 84.47, 301.22°)
OKLab	oklab(56.38% 0.0366 -0.2077)
OKLCH	oklch(56.38% 0.211 280)
XYZ	xyz(24.1322, 16.2460, 81.2047)
Luminance	0.1625 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645BEC #E3EC5B

analogous

#5B9BEC #645BEC #AD5BEC

triadic

#645BEC #EC645B #5BEC64

tetradic

#645BEC #EC5B9B #E3EC5B #5BECAD

square

#645BEC #EC5B9B #E3EC5B #5BECAD

split-complementary

#645BEC #ECAD5B #9BEC5B

monochromatic

#1F15B7 #3024E6 #645BEC #9892F2 #CCC9F9

Accessibility & contrast

On white

4.94

#645BEC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#645BEC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645BEC

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645BEC	#FFFFFF	#000000	##FFFFFF
##645BEC	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076F1

Deuteranopia (green-blind)

#006BE9

Tritanopia (blue-blind)

#077F9B

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #645bec;
/* rgb */ color: rgb(100, 91, 236);
/* oklch */ color: oklch(56.4% 0.211 280.0);

Tailwind

colors: {
  custom: {
    50: '#9c8af3',
    500: '#645bec',
    950: '#000000',
  },
}

SCSS

$custom: #645bec;
$custom-light: #9c8af3;
$custom-dark: #000000;

JSON

{
  "hex": "#645bec",
  "rgb": {
    "r": 100,
    "g": 91,
    "b": 236
  },
  "hsl": {
    "h": 243.724,
    "s": 79.235,
    "l": 64.118
  },
  "oklch": {
    "l": 0.56377,
    "c": 0.21088,
    "h": 280
  },
  "luminance": 0.16248
}

Semantic roles & 50–950 ramp

primary

#645BEC

secondary

#E8EBB8

accent

#DC0ACF

background

#FAF8FF

surface

#F4F0FE

border

#CECBD6

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #645BEC

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

Preview Lab → · Contrast checker → · Palette generator →