#645BE8#645BE8

#645BE8 is a mid, highly saturated blue. Relative luminance 0.160; OKLCH L 56.1% C 0.206 H 280.3°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#645BE8
RGB	rgb(100, 91, 232)
HSL	hsl(244, 75%, 63%)
HSV	hsv(244, 61%, 91%)
CMYK	cmyk(56.9%, 60.8%, 0%, 9%)
CIE-LAB	lab(47.00, 42.54, -70.48)
CIE-LCH	lch(47.00, 82.32, 301.12°)
OKLab	oklab(56.06% 0.0368 -0.2025)
OKLCH	oklch(56.06% 0.206 280.3)
XYZ	xyz(23.5575, 16.0161, 78.1783)
Luminance	0.1602 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645BE8 #DFE85B

analogous

#5B98E8 #645BE8 #AA5BE8

triadic

#645BE8 #E8645B #5BE864

tetradic

#645BE8 #E85B98 #DFE85B #5BE8AA

square

#645BE8 #E85B98 #DFE85B #5BE8AA

split-complementary

#645BE8 #E8AA5B #98E85B

monochromatic

#2219B0 #3125E0 #645BE8 #9791F0 #C9C6F7

Accessibility & contrast

On white

5.00

#645BE8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#645BE8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645BE8

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645BE8	#FFFFFF	#000000	##FFFFFF
##645BE8	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)

#0075ED

Deuteranopia (green-blind)

#006AE5

Tritanopia (blue-blind)

#157D99

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #645be8;
/* rgb */ color: rgb(100, 91, 232);
/* oklch */ color: oklch(56.1% 0.206 280.3);

Tailwind

colors: {
  custom: {
    50: '#9c8af0',
    500: '#645be8',
    950: '#000000',
  },
}

SCSS

$custom: #645be8;
$custom-light: #9c8af0;
$custom-dark: #000000;

JSON

{
  "hex": "#645be8",
  "rgb": {
    "r": 100,
    "g": 91,
    "b": 232
  },
  "hsl": {
    "h": 243.83,
    "s": 75.401,
    "l": 63.333
  },
  "oklch": {
    "l": 0.56063,
    "c": 0.20581,
    "h": 280.3
  },
  "luminance": 0.16018
}

Semantic roles & 50–950 ramp

primary

#645BE8

secondary

#E5E9B6

accent

#D80ECB

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #645BE8

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

Preview Lab → · Contrast checker → · Palette generator →