#645DD2#645DD2

#645DD2 is a mid, vivid blue. Relative luminance 0.152; OKLCH L 54.8% C 0.175 H 281.6°. Best body text is #FFFFFF at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#645DD2
RGB	rgb(100, 93, 210)
HSL	hsl(244, 57%, 59%)
HSV	hsv(244, 56%, 82%)
CMYK	cmyk(52.4%, 55.7%, 0%, 17.6%)
CIE-LAB	lab(45.89, 34.52, -59.76)
CIE-LCH	lch(45.89, 69.02, 300.01°)
OKLab	oklab(54.76% 0.0352 -0.171)
OKLCH	oklch(54.76% 0.175 281.6)
XYZ	xyz(20.7992, 15.1900, 62.7963)
Luminance	0.1519 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DD2 #CBD25D

analogous

#5D91D2 #645DD2 #9F5DD2

triadic

#645DD2 #D2645D #5DD264

tetradic

#645DD2 #D25D91 #CBD25D #5DD29F

square

#645DD2 #D25D91 #CBD25D #5DD29F

split-complementary

#645DD2 #D29F5D #91D25D

monochromatic

#2D278D #3D35BD #645DD2 #928DDF #C0BDED

Accessibility & contrast

On white

5.20

#645DD2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.04

#645DD2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DD2

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DD2	#FFFFFF	#000000	##FFFFFF
##645DD2	1.00	5.20	4.04	5.20
#FFFFFF	5.20	1.00	21.00	1.00
#000000	4.04	21.00	1.00	21.00
##FFFFFF	5.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0971D6

Deuteranopia (green-blind)

#0069D0

Tritanopia (blue-blind)

#36788E

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #645dd2;
/* rgb */ color: rgb(100, 93, 210);
/* oklch */ color: oklch(54.8% 0.175 281.6);

Tailwind

colors: {
  custom: {
    50: '#988be1',
    500: '#645dd2',
    950: '#000000',
  },
}

SCSS

$custom: #645dd2;
$custom-light: #988be1;
$custom-dark: #000000;

JSON

{
  "hex": "#645dd2",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 210
  },
  "hsl": {
    "h": 243.59,
    "s": 56.522,
    "l": 59.412
  },
  "oklch": {
    "l": 0.54756,
    "c": 0.17457,
    "h": 281.6
  },
  "luminance": 0.15191
}

Semantic roles & 50–950 ramp

primary

#645DD2

secondary

#D9DCAF

accent

#E048D7

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #645DD2

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

Preview Lab → · Contrast checker → · Palette generator →