#645EDD#645EDD

#645EDD is a mid, vivid blue. Relative luminance 0.159; OKLCH L 55.7% C 0.188 H 280.5°. Best body text is #FFFFFF at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#645EDD
RGB	rgb(100, 94, 221)
HSL	hsl(243, 65%, 62%)
HSV	hsv(243, 57%, 87%)
CMYK	cmyk(54.8%, 57.5%, 0%, 13.3%)
CIE-LAB	lab(46.89, 37.34, -64.43)
CIE-LCH	lch(46.89, 74.47, 300.10°)
OKLab	oklab(55.73% 0.0343 -0.1847)
OKLCH	oklch(55.73% 0.188 280.5)
XYZ	xyz(22.3053, 15.9338, 70.2928)
Luminance	0.1593 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EDD #D7DD5E

analogous

#5E98DD #645EDD #A45EDD

triadic

#645EDD #DD645E #5EDD64

tetradic

#645EDD #DD5E98 #D7DD5E #5EDDA4

square

#645EDD #DD5E98 #D7DD5E #5EDDA4

split-complementary

#645EDD #DDA45E #98DD5E

monochromatic

#28229F #342CD2 #645EDD #9591E8 #C5C3F2

Accessibility & contrast

On white

5.02

#645EDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#645EDD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EDD

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EDD	#FFFFFF	#000000	##FFFFFF
##645EDD	1.00	5.02	4.19	5.02
#FFFFFF	5.02	1.00	21.00	1.00
#000000	4.19	21.00	1.00	21.00
##FFFFFF	5.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074E1

Deuteranopia (green-blind)

#006ADA

Tritanopia (blue-blind)

#297C94

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #645edd;
/* rgb */ color: rgb(100, 94, 221);
/* oklch */ color: oklch(55.7% 0.188 280.5);

Tailwind

colors: {
  custom: {
    50: '#9a8ce8',
    500: '#645edd',
    950: '#000000',
  },
}

SCSS

$custom: #645edd;
$custom-light: #9a8ce8;
$custom-dark: #000000;

JSON

{
  "hex": "#645edd",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 221
  },
  "hsl": {
    "h": 242.835,
    "s": 65.128,
    "l": 61.765
  },
  "oklch": {
    "l": 0.55733,
    "c": 0.18784,
    "h": 280.5
  },
  "luminance": 0.15935
}

Semantic roles & 50–950 ramp

primary

#645EDD

secondary

#E1E3B4

accent

#CD19C4

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #645EDD

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

Preview Lab → · Contrast checker → · Palette generator →