#645FD6#645FD6

#645FD6 is a mid, vivid blue. Relative luminance 0.157; OKLCH L 55.4% C 0.177 H 280.8°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#645FD6
RGB	rgb(100, 95, 214)
HSL	hsl(243, 59%, 61%)
HSV	hsv(243, 56%, 84%)
CMYK	cmyk(53.3%, 55.6%, 0%, 16.1%)
CIE-LAB	lab(46.64, 34.56, -60.84)
CIE-LCH	lch(46.64, 69.97, 299.60°)
OKLab	oklab(55.4% 0.0332 -0.1741)
OKLCH	oklch(55.4% 0.177 280.8)
XYZ	xyz(21.4816, 15.7475, 65.5129)
Luminance	0.1575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FD6 #D1D65F

analogous

#5F95D6 #645FD6 #9F5FD6

triadic

#645FD6 #D6645F #5FD664

tetradic

#645FD6 #D65F95 #D1D65F #5FD69F

square

#645FD6 #D65F95 #D1D65F #5FD69F

split-complementary

#645FD6 #D69F5F #95D65F

monochromatic

#2B2695 #3933C5 #645FD6 #9390E2 #C2C0EF

Accessibility & contrast

On white

5.06

#645FD6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#645FD6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FD6

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FD6	#FFFFFF	#000000	##FFFFFF
##645FD6	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0773DA

Deuteranopia (green-blind)

#006AD4

Tritanopia (blue-blind)

#317A91

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #645fd6;
/* rgb */ color: rgb(100, 95, 214);
/* oklch */ color: oklch(55.4% 0.177 280.8);

Tailwind

colors: {
  custom: {
    50: '#998ce3',
    500: '#645fd6',
    950: '#000000',
  },
}

SCSS

$custom: #645fd6;
$custom-light: #998ce3;
$custom-dark: #000000;

JSON

{
  "hex": "#645fd6",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 214
  },
  "hsl": {
    "h": 242.521,
    "s": 59.204,
    "l": 60.588
  },
  "oklch": {
    "l": 0.55398,
    "c": 0.17728,
    "h": 280.8
  },
  "luminance": 0.15749
}

Semantic roles & 50–950 ramp

primary

#645FD6

secondary

#DDDFB2

accent

#C71FC0

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0F0C16

muted

#7E7D84

Preview Lab

Preview with #645FD6

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

Preview Lab → · Contrast checker → · Palette generator →