#645DC8#645DC8

#645DC8 is a mid, vivid blue. Relative luminance 0.147; OKLCH L 54.1% C 0.161 H 282.5°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#645DC8
RGB	rgb(100, 93, 200)
HSL	hsl(244, 49%, 57%)
HSV	hsv(244, 54%, 78%)
CMYK	cmyk(50%, 53.5%, 0%, 21.6%)
CIE-LAB	lab(45.23, 31.44, -55.09)
CIE-LCH	lch(45.23, 63.43, 299.71°)
OKLab	oklab(54.05% 0.0349 -0.1572)
OKLCH	oklch(54.05% 0.161 282.5)
XYZ	xyz(19.5921, 14.7071, 56.4388)
Luminance	0.1471 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DC8 #C1C85D

analogous

#5D8CC8 #645DC8 #995DC8

triadic

#645DC8 #C8645D #5DC864

tetradic

#645DC8 #C85D8C #C1C85D #5DC899

square

#645DC8 #C85D8C #C1C85D #5DC899

split-complementary

#645DC8 #C8995D #8CC85D

monochromatic

#312B7F #423BAD #645DC8 #908BD8 #BBB8E7

Accessibility & contrast

On white

5.33

#645DC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#645DC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DC8

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DC8	#FFFFFF	#000000	##FFFFFF
##645DC8	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#226FCC

Deuteranopia (green-blind)

#1867C6

Tritanopia (blue-blind)

#3E7589

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #645dc8;
/* rgb */ color: rgb(100, 93, 200);
/* oklch */ color: oklch(54.1% 0.161 282.5);

Tailwind

colors: {
  custom: {
    50: '#978bd9',
    500: '#645dc8',
    950: '#000000',
  },
}

SCSS

$custom: #645dc8;
$custom-light: #978bd9;
$custom-dark: #000000;

JSON

{
  "hex": "#645dc8",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 200
  },
  "hsl": {
    "h": 243.925,
    "s": 49.309,
    "l": 57.451
  },
  "oklch": {
    "l": 0.54051,
    "c": 0.16106,
    "h": 282.5
  },
  "luminance": 0.14708
}

Semantic roles & 50–950 ramp

primary

#645DC8

secondary

#D3D6AB

accent

#D94FD0

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #645DC8

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

Preview Lab → · Contrast checker → · Palette generator →