#645DE8#645DE8

#645DE8 is a mid, highly saturated blue. Relative luminance 0.164; OKLCH L 56.4% C 0.203 H 279.9°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#645DE8
RGB	rgb(100, 93, 232)
HSL	hsl(243, 75%, 64%)
HSV	hsv(243, 60%, 91%)
CMYK	cmyk(56.9%, 59.9%, 0%, 9%)
CIE-LAB	lab(47.45, 41.37, -69.74)
CIE-LCH	lch(47.45, 81.09, 300.67°)
OKLab	oklab(56.39% 0.035 -0.2003)
OKLCH	oklch(56.39% 0.203 279.9)
XYZ	xyz(23.7308, 16.3626, 78.2361)
Luminance	0.1636 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DE8 #E1E85D

analogous

#5D9BE8 #645DE8 #A95DE8

triadic

#645DE8 #E8645D #5DE864

tetradic

#645DE8 #E85D9B #E1E85D #5DE8A9

square

#645DE8 #E85D9B #E1E85D #5DE8A9

split-complementary

#645DE8 #E8A95D #9BE85D

monochromatic

#2119B1 #3127E0 #645DE8 #9793F0 #CBC8F7

Accessibility & contrast

On white

4.91

#645DE8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#645DE8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DE8

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DE8	#FFFFFF	#000000	##FFFFFF
##645DE8	1.00	4.91	4.27	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076ED

Deuteranopia (green-blind)

#006BE5

Tritanopia (blue-blind)

#157F9A

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #645de8;
/* rgb */ color: rgb(100, 93, 232);
/* oklch */ color: oklch(56.4% 0.203 279.9);

Tailwind

colors: {
  custom: {
    50: '#9c8bf0',
    500: '#645de8',
    950: '#000000',
  },
}

SCSS

$custom: #645de8;
$custom-light: #9c8bf0;
$custom-dark: #000000;

JSON

{
  "hex": "#645de8",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 232
  },
  "hsl": {
    "h": 243.022,
    "s": 75.135,
    "l": 63.725
  },
  "oklch": {
    "l": 0.56394,
    "c": 0.20336,
    "h": 279.9
  },
  "luminance": 0.16364
}

Semantic roles & 50–950 ramp

primary

#645DE8

secondary

#E6E9B8

accent

#D70ECD

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #645DE8

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

Preview Lab → · Contrast checker → · Palette generator →