#645AEB#645AEB

#645AEB is a mid, highly saturated blue. Relative luminance 0.160; OKLCH L 56.1% C 0.211 H 280.3°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#645AEB
RGB	rgb(100, 90, 235)
HSL	hsl(244, 78%, 64%)
HSV	hsv(244, 62%, 92%)
CMYK	cmyk(57.4%, 61.7%, 0%, 7.8%)
CIE-LAB	lab(47.00, 44.06, -72.16)
CIE-LCH	lch(47.00, 84.55, 301.40°)
OKLab	oklab(56.14% 0.0375 -0.2075)
OKLCH	oklch(56.14% 0.211 280.3)
XYZ	xyz(23.9024, 16.0182, 80.4134)
Luminance	0.1602 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645AEB #E1EB5A

analogous

#5A98EB #645AEB #AC5AEB

triadic

#645AEB #EB645A #5AEB64

tetradic

#645AEB #EB5A98 #E1EB5A #5AEBAC

square

#645AEB #EB5A98 #E1EB5A #5AEBAC

split-complementary

#645AEB #EBAC5A #98EB5A

monochromatic

#2116B5 #3123E4 #645AEB #9791F2 #CBC7F8

Accessibility & contrast

On white

5.00

#645AEB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#645AEB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645AEB

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645AEB	#FFFFFF	#000000	##FFFFFF
##645AEB	1.00	5.00	4.20	5.00
#FFFFFF	5.00	1.00	21.00	1.00
#000000	4.20	21.00	1.00	21.00
##FFFFFF	5.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075F0

Deuteranopia (green-blind)

#006AE8

Tritanopia (blue-blind)

#0C7E9A

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #645aeb;
/* rgb */ color: rgb(100, 90, 235);
/* oklch */ color: oklch(56.1% 0.211 280.3);

Tailwind

colors: {
  custom: {
    50: '#9c89f2',
    500: '#645aeb',
    950: '#000000',
  },
}

SCSS

$custom: #645aeb;
$custom-light: #9c89f2;
$custom-dark: #000000;

JSON

{
  "hex": "#645aeb",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 235
  },
  "hsl": {
    "h": 244.138,
    "s": 78.378,
    "l": 63.725
  },
  "oklch": {
    "l": 0.56136,
    "c": 0.21083,
    "h": 280.3
  },
  "luminance": 0.1602
}

Semantic roles & 50–950 ramp

primary

#645AEB

secondary

#E6EAB7

accent

#DB0BCC

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0B17

muted

#7F7C85

Preview Lab

Preview with #645AEB

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

Preview Lab → · Contrast checker → · Palette generator →