#645ECD#645ECD

#645ECD is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.6% C 0.167 H 281.8°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#645ECD
RGB	rgb(100, 94, 205)
HSL	hsl(243, 53%, 59%)
HSV	hsv(243, 54%, 80%)
CMYK	cmyk(51.2%, 54.1%, 0%, 19.6%)
CIE-LAB	lab(45.80, 32.37, -57.05)
CIE-LCH	lch(45.80, 65.59, 299.57°)
OKLab	oklab(54.58% 0.034 -0.163)
OKLCH	oklch(54.58% 0.167 281.8)
XYZ	xyz(20.2743, 15.1214, 59.5962)
Luminance	0.1512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645ECD #C7CD5E

analogous

#5E8FCD #645ECD #9B5ECD

triadic

#645ECD #CD645E #5ECD64

tetradic

#645ECD #CD5E8F #C7CD5E #5ECD9B

square

#645ECD #CD5E8F #C7CD5E #5ECD9B

split-complementary

#645ECD #CD9B5E #8FCD5E

monochromatic

#2F2A87 #3F38B5 #645ECD #918DDC #BEBBEA

Accessibility & contrast

On white

5.22

#645ECD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#645ECD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645ECD

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645ECD	#FFFFFF	#000000	##FFFFFF
##645ECD	1.00	5.22	4.02	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D70D1

Deuteranopia (green-blind)

#0D69CB

Tritanopia (blue-blind)

#3A778C

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #645ecd;
/* rgb */ color: rgb(100, 94, 205);
/* oklch */ color: oklch(54.6% 0.167 281.8);

Tailwind

colors: {
  custom: {
    50: '#988cdd',
    500: '#645ecd',
    950: '#000000',
  },
}

SCSS

$custom: #645ecd;
$custom-light: #988cdd;
$custom-dark: #000000;

JSON

{
  "hex": "#645ecd",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 205
  },
  "hsl": {
    "h": 243.243,
    "s": 52.607,
    "l": 58.627
  },
  "oklch": {
    "l": 0.5458,
    "c": 0.1665,
    "h": 281.8
  },
  "luminance": 0.15123
}

Semantic roles & 50–950 ramp

primary

#645ECD

secondary

#D7D9AD

accent

#DC4CD4

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #645ECD

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

Preview Lab → · Contrast checker → · Palette generator →