#645EE6#645EE6

#645EE6 is a mid, vivid blue. Relative luminance 0.164; OKLCH L 56.4% C 0.200 H 279.8°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#645EE6
RGB	rgb(100, 94, 230)
HSL	hsl(243, 73%, 64%)
HSV	hsv(243, 59%, 90%)
CMYK	cmyk(56.5%, 59.1%, 0%, 9.8%)
CIE-LAB	lab(47.53, 40.15, -68.48)
CIE-LCH	lch(47.53, 79.38, 300.38°)
OKLab	oklab(56.41% 0.0341 -0.1966)
OKLCH	oklch(56.41% 0.2 279.8)
XYZ	xyz(23.5367, 16.4263, 76.7779)
Luminance	0.1643 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EE6 #E0E65E

analogous

#5E9CE6 #645EE6 #A85EE6

triadic

#645EE6 #E6645E #5EE664

tetradic

#645EE6 #E65E9C #E0E65E #5EE6A8

square

#645EE6 #E65E9C #E0E65E #5EE6A8

split-complementary

#645EE6 #E6A85E #9CE65E

monochromatic

#221BAF #3129DE #645EE6 #9793EE #CAC8F6

Accessibility & contrast

On white

4.90

#645EE6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#645EE6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EE6

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EE6	#FFFFFF	#000000	##FFFFFF
##645EE6	1.00	4.90	4.29	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076EA

Deuteranopia (green-blind)

#006BE3

Tritanopia (blue-blind)

#197F99

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #645ee6;
/* rgb */ color: rgb(100, 94, 230);
/* oklch */ color: oklch(56.4% 0.200 279.8);

Tailwind

colors: {
  custom: {
    50: '#9b8cef',
    500: '#645ee6',
    950: '#000000',
  },
}

SCSS

$custom: #645ee6;
$custom-light: #9b8cef;
$custom-dark: #000000;

JSON

{
  "hex": "#645ee6",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 230
  },
  "hsl": {
    "h": 242.647,
    "s": 73.118,
    "l": 63.529
  },
  "oklch": {
    "l": 0.56409,
    "c": 0.19955,
    "h": 279.8
  },
  "luminance": 0.16428
}

Semantic roles & 50–950 ramp

primary

#645EE6

secondary

#E6E8B8

accent

#D510CD

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #645EE6

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

Preview Lab → · Contrast checker → · Palette generator →