#645EEB#645EEB

#645EEB is a mid, highly saturated blue. Relative luminance 0.167; OKLCH L 56.8% C 0.206 H 279.5°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#645EEB
RGB	rgb(100, 94, 235)
HSL	hsl(243, 78%, 65%)
HSV	hsv(243, 60%, 92%)
CMYK	cmyk(57.4%, 60%, 0%, 7.8%)
CIE-LAB	lab(47.89, 41.71, -70.71)
CIE-LCH	lch(47.89, 82.09, 300.54°)
OKLab	oklab(56.79% 0.0339 -0.2032)
OKLCH	oklch(56.79% 0.206 279.5)
XYZ	xyz(24.2489, 16.7112, 80.5289)
Luminance	0.1671 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EEB #E5EB5E

analogous

#5E9FEB #645EEB #AB5EEB

triadic

#645EEB #EB645E #5EEB64

tetradic

#645EEB #EB5E9F #E5EB5E #5EEBAB

square

#645EEB #EB5E9F #E5EB5E #5EEBAB

split-complementary

#645EEB #EBAB5E #9FEB5E

monochromatic

#1E17B8 #3028E4 #645EEB #9894F2 #CDCBF9

Accessibility & contrast

On white

4.84

#645EEB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#645EEB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EEB

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EEB	#FFFFFF	#000000	##FFFFFF
##645EEB	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0077F0

Deuteranopia (green-blind)

#006CE8

Tritanopia (blue-blind)

#0A809C

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #645eeb;
/* rgb */ color: rgb(100, 94, 235);
/* oklch */ color: oklch(56.8% 0.206 279.5);

Tailwind

colors: {
  custom: {
    50: '#9c8cf2',
    500: '#645eeb',
    950: '#000000',
  },
}

SCSS

$custom: #645eeb;
$custom-light: #9c8cf2;
$custom-dark: #000000;

JSON

{
  "hex": "#645eeb",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 235
  },
  "hsl": {
    "h": 242.553,
    "s": 77.901,
    "l": 64.51
  },
  "oklch": {
    "l": 0.56793,
    "c": 0.20597,
    "h": 279.5
  },
  "luminance": 0.16713
}

Semantic roles & 50–950 ramp

primary

#645EEB

secondary

#E9EBBA

accent

#DA0BD1

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #645EEB

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

Preview Lab → · Contrast checker → · Palette generator →