#645FD8#645FD8

#645FD8 is a mid, vivid blue. Relative luminance 0.159; OKLCH L 55.5% C 0.180 H 280.6°. Best body text is #FFFFFF at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#645FD8
RGB	rgb(100, 95, 216)
HSL	hsl(242, 61%, 61%)
HSV	hsv(242, 56%, 85%)
CMYK	cmyk(53.7%, 56%, 0%, 15.3%)
CIE-LAB	lab(46.78, 35.18, -61.76)
CIE-LCH	lch(46.78, 71.08, 299.67°)
OKLab	oklab(55.54% 0.0332 -0.1768)
OKLCH	oklch(55.54% 0.18 280.6)
XYZ	xyz(21.7386, 15.8503, 66.8664)
Luminance	0.1585 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FD8 #D3D85F

analogous

#5F96D8 #645FD8 #A05FD8

triadic

#645FD8 #D8645F #5FD864

tetradic

#645FD8 #D85F96 #D3D85F #5FD8A0

square

#645FD8 #D85F96 #D3D85F #5FD8A0

split-complementary

#645FD8 #D8A05F #96D85F

monochromatic

#2A2598 #3731C9 #645FD8 #9490E4 #C3C1F0

Accessibility & contrast

On white

5.04

#645FD8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#645FD8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FD8

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FD8	#FFFFFF	#000000	##FFFFFF
##645FD8	1.00	5.04	4.17	5.04
#FFFFFF	5.04	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073DC

Deuteranopia (green-blind)

#006AD5

Tritanopia (blue-blind)

#2F7B92

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #645fd8;
/* rgb */ color: rgb(100, 95, 216);
/* oklch */ color: oklch(55.5% 0.180 280.6);

Tailwind

colors: {
  custom: {
    50: '#998ce5',
    500: '#645fd8',
    950: '#000000',
  },
}

SCSS

$custom: #645fd8;
$custom-light: #998ce5;
$custom-dark: #000000;

JSON

{
  "hex": "#645fd8",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 216
  },
  "hsl": {
    "h": 242.479,
    "s": 60.804,
    "l": 60.98
  },
  "oklch": {
    "l": 0.55542,
    "c": 0.17994,
    "h": 280.6
  },
  "luminance": 0.15852
}

Semantic roles & 50–950 ramp

primary

#645FD8

secondary

#DEE0B3

accent

#C81DC1

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0F0C16

muted

#7E7D84

Preview Lab

Preview with #645FD8

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

Preview Lab → · Contrast checker → · Palette generator →