#645CE1#645CE1

#645CE1 is a mid, vivid blue. Relative luminance 0.158; OKLCH L 55.7% C 0.196 H 280.6°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#645CE1
RGB	rgb(100, 92, 225)
HSL	hsl(244, 69%, 62%)
HSV	hsv(244, 59%, 88%)
CMYK	cmyk(55.6%, 59.1%, 0%, 11.8%)
CIE-LAB	lab(46.71, 39.78, -66.99)
CIE-LCH	lch(46.71, 77.91, 300.70°)
OKLab	oklab(55.69% 0.0361 -0.1922)
OKLCH	oklch(55.69% 0.196 280.6)
XYZ	xyz(22.6690, 15.7984, 73.0744)
Luminance	0.1580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CE1 #D9E15C

analogous

#5C97E1 #645CE1 #A75CE1

triadic

#645CE1 #E1645C #5CE164

tetradic

#645CE1 #E15C97 #D9E15C #5CE1A7

square

#645CE1 #E15C97 #D9E15C #5CE1A7

split-complementary

#645CE1 #E1A75C #97E15C

monochromatic

#261EA4 #3328D7 #645CE1 #9590EB #C6C3F4

Accessibility & contrast

On white

5.05

#645CE1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#645CE1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CE1

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CE1	#FFFFFF	#000000	##FFFFFF
##645CE1	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074E5

Deuteranopia (green-blind)

#006ADE

Tritanopia (blue-blind)

#237C96

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #645ce1;
/* rgb */ color: rgb(100, 92, 225);
/* oklch */ color: oklch(55.7% 0.196 280.6);

Tailwind

colors: {
  custom: {
    50: '#9b8aeb',
    500: '#645ce1',
    950: '#000000',
  },
}

SCSS

$custom: #645ce1;
$custom-light: #9b8aeb;
$custom-dark: #000000;

JSON

{
  "hex": "#645ce1",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 225
  },
  "hsl": {
    "h": 243.609,
    "s": 68.912,
    "l": 62.157
  },
  "oklch": {
    "l": 0.55691,
    "c": 0.1956,
    "h": 280.6
  },
  "luminance": 0.158
}

Semantic roles & 50–950 ramp

primary

#645CE1

secondary

#E2E5B4

accent

#D115C6

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #645CE1

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

Preview Lab → · Contrast checker → · Palette generator →