#645ECA#645ECA

#645ECA is a mid, vivid blue. Relative luminance 0.150; OKLCH L 54.4% C 0.162 H 282.0°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#645ECA
RGB	rgb(100, 94, 202)
HSL	hsl(243, 50%, 58%)
HSV	hsv(243, 53%, 79%)
CMYK	cmyk(50.5%, 53.5%, 0%, 20.8%)
CIE-LAB	lab(45.60, 31.44, -55.64)
CIE-LCH	lch(45.60, 63.91, 299.47°)
OKLab	oklab(54.37% 0.0339 -0.1588)
OKLCH	oklch(54.37% 0.162 282)
XYZ	xyz(19.9157, 14.9779, 57.7073)
Luminance	0.1498 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645ECA #C4CA5E

analogous

#5E8ECA #645ECA #9A5ECA

triadic

#645ECA #CA645E #5ECA64

tetradic

#645ECA #CA5E8E #C4CA5E #5ECA9A

square

#645ECA #CA5E8E #C4CA5E #5ECA9A

split-complementary

#645ECA #CA9A5E #8ECA5E

monochromatic

#302B83 #413AB1 #645ECA #908CD9 #BDBAE8

Accessibility & contrast

On white

5.26

#645ECA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#645ECA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645ECA

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645ECA	#FFFFFF	#000000	##FFFFFF
##645ECA	1.00	5.26	4.00	5.26
#FFFFFF	5.26	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2270CE

Deuteranopia (green-blind)

#1768C8

Tritanopia (blue-blind)

#3C768B

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #645eca;
/* rgb */ color: rgb(100, 94, 202);
/* oklch */ color: oklch(54.4% 0.162 282.0);

Tailwind

colors: {
  custom: {
    50: '#978cdb',
    500: '#645eca',
    950: '#000000',
  },
}

SCSS

$custom: #645eca;
$custom-light: #978cdb;
$custom-dark: #000000;

JSON

{
  "hex": "#645eca",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 202
  },
  "hsl": {
    "h": 243.333,
    "s": 50.467,
    "l": 58.039
  },
  "oklch": {
    "l": 0.54371,
    "c": 0.16242,
    "h": 282
  },
  "luminance": 0.14979
}

Semantic roles & 50–950 ramp

primary

#645ECA

secondary

#D5D7AC

accent

#DA4ED2

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #645ECA

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

Preview Lab → · Contrast checker → · Palette generator →