#645ED5#645ED5

#645ED5 is a mid, vivid blue. Relative luminance 0.155; OKLCH L 55.1% C 0.177 H 281.1°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#645ED5
RGB	rgb(100, 94, 213)
HSL	hsl(243, 59%, 60%)
HSV	hsv(243, 56%, 84%)
CMYK	cmyk(53.1%, 55.9%, 0%, 16.5%)
CIE-LAB	lab(46.34, 34.85, -60.77)
CIE-LCH	lch(46.34, 70.05, 299.84°)
OKLab	oklab(55.15% 0.0342 -0.1739)
OKLCH	oklch(55.15% 0.177 281.1)
XYZ	xyz(21.2648, 15.5176, 64.8126)
Luminance	0.1552 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645ED5 #CFD55E

analogous

#5E94D5 #645ED5 #9F5ED5

triadic

#645ED5 #D5645E #5ED564

tetradic

#645ED5 #D55E94 #CFD55E #5ED59F

square

#645ED5 #D55E94 #CFD55E #5ED59F

split-complementary

#645ED5 #D59F5E #94D55E

monochromatic

#2C2692 #3A33C3 #645ED5 #938FE2 #C1BFEE

Accessibility & contrast

On white

5.12

#645ED5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#645ED5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645ED5

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645ED5	#FFFFFF	#000000	##FFFFFF
##645ED5	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0372D9

Deuteranopia (green-blind)

#0069D3

Tritanopia (blue-blind)

#327990

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #645ed5;
/* rgb */ color: rgb(100, 94, 213);
/* oklch */ color: oklch(55.1% 0.177 281.1);

Tailwind

colors: {
  custom: {
    50: '#998ce3',
    500: '#645ed5',
    950: '#000000',
  },
}

SCSS

$custom: #645ed5;
$custom-light: #998ce3;
$custom-dark: #000000;

JSON

{
  "hex": "#645ed5",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 213
  },
  "hsl": {
    "h": 243.025,
    "s": 58.621,
    "l": 60.196
  },
  "oklch": {
    "l": 0.55149,
    "c": 0.17726,
    "h": 281.1
  },
  "luminance": 0.15519
}

Semantic roles & 50–950 ramp

primary

#645ED5

secondary

#DCDEB1

accent

#C61FBE

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0F0C15

muted

#7E7D84

Preview Lab

Preview with #645ED5

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

Preview Lab → · Contrast checker → · Palette generator →