#645FC0#645FC0

#645FC0 is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.9% C 0.147 H 282.6°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#645FC0
RGB	rgb(100, 95, 192)
HSL	hsl(243, 43%, 56%)
HSV	hsv(243, 51%, 75%)
CMYK	cmyk(47.9%, 50.5%, 0%, 24.7%)
CIE-LAB	lab(45.22, 27.76, -50.48)
CIE-LCH	lch(45.22, 57.61, 298.80°)
OKLab	oklab(53.88% 0.0321 -0.1437)
OKLCH	oklch(53.88% 0.147 282.6)
XYZ	xyz(18.8593, 14.6986, 51.7023)
Luminance	0.1470 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FC0 #BBC05F

analogous

#5F8BC0 #645FC0 #955FC0

triadic

#645FC0 #C0645F #5FC064

tetradic

#645FC0 #C05F8B #BBC05F #5FC095

square

#645FC0 #C05F8B #BBC05F #5FC095

split-complementary

#645FC0 #C0955F #8BC05F

monochromatic

#322F76 #4540A2 #645FC0 #8F8BD1 #B9B7E3

Accessibility & contrast

On white

5.33

#645FC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#645FC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FC0

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FC0	#FFFFFF	#000000	##FFFFFF
##645FC0	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)

#326EC3

Deuteranopia (green-blind)

#2C68BE

Tritanopia (blue-blind)

#447486

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #645fc0;
/* rgb */ color: rgb(100, 95, 192);
/* oklch */ color: oklch(53.9% 0.147 282.6);

Tailwind

colors: {
  custom: {
    50: '#968cd3',
    500: '#645fc0',
    950: '#000000',
  },
}

SCSS

$custom: #645fc0;
$custom-light: #968cd3;
$custom-dark: #000000;

JSON

{
  "hex": "#645fc0",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 192
  },
  "hsl": {
    "h": 243.093,
    "s": 43.498,
    "l": 56.275
  },
  "oklch": {
    "l": 0.5388,
    "c": 0.14722,
    "h": 282.6
  },
  "luminance": 0.147
}

Semantic roles & 50–950 ramp

primary

#645FC0

secondary

#CFD1A9

accent

#D355CD

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0C14

muted

#7E7D83

Preview Lab

Preview with #645FC0

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

Preview Lab → · Contrast checker → · Palette generator →