#645BEB#645BEB

#645BEB is a mid, highly saturated blue. Relative luminance 0.162; OKLCH L 56.3% C 0.210 H 280.1°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#645BEB
RGB	rgb(100, 91, 235)
HSL	hsl(244, 78%, 64%)
HSV	hsv(244, 61%, 92%)
CMYK	cmyk(57.4%, 61.3%, 0%, 7.8%)
CIE-LAB	lab(47.22, 43.47, -71.80)
CIE-LCH	lch(47.22, 83.94, 301.19°)
OKLab	oklab(56.3% 0.0366 -0.2064)
OKLCH	oklch(56.3% 0.21 280.1)
XYZ	xyz(23.9873, 16.1880, 80.4417)
Luminance	0.1619 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645BEB #E2EB5B

analogous

#5B9AEB #645BEB #AC5BEB

triadic

#645BEB #EB645B #5BEB64

tetradic

#645BEB #EB5B9A #E2EB5B #5BEBAC

square

#645BEB #EB5B9A #E2EB5B #5BEBAC

split-complementary

#645BEB #EBAC5B #9AEB5B

monochromatic

#2016B5 #3024E4 #645BEB #9892F2 #CBC8F8

Accessibility & contrast

On white

4.96

#645BEB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#645BEB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645BEB

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645BEB	#FFFFFF	#000000	##FFFFFF
##645BEB	1.00	4.96	4.24	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075F0

Deuteranopia (green-blind)

#006AE8

Tritanopia (blue-blind)

#0B7E9A

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #645beb;
/* rgb */ color: rgb(100, 91, 235);
/* oklch */ color: oklch(56.3% 0.210 280.1);

Tailwind

colors: {
  custom: {
    50: '#9c8af2',
    500: '#645beb',
    950: '#000000',
  },
}

SCSS

$custom: #645beb;
$custom-light: #9c8af2;
$custom-dark: #000000;

JSON

{
  "hex": "#645beb",
  "rgb": {
    "r": 100,
    "g": 91,
    "b": 235
  },
  "hsl": {
    "h": 243.75,
    "s": 78.261,
    "l": 63.922
  },
  "oklch": {
    "l": 0.56298,
    "c": 0.20961,
    "h": 280.1
  },
  "luminance": 0.1619
}

Semantic roles & 50–950 ramp

primary

#645BEB

secondary

#E7EAB8

accent

#DB0BCE

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #645BEB

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

Preview Lab → · Contrast checker → · Palette generator →