#645CE5#645CE5

#645CE5 is a mid, highly saturated blue. Relative luminance 0.160; OKLCH L 56.0% C 0.201 H 280.3°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#645CE5
RGB	rgb(100, 92, 229)
HSL	hsl(244, 72%, 63%)
HSV	hsv(244, 60%, 90%)
CMYK	cmyk(56.3%, 59.8%, 0%, 10.2%)
CIE-LAB	lab(47.00, 41.02, -68.78)
CIE-LCH	lch(47.00, 80.08, 300.81°)
OKLab	oklab(56% 0.036 -0.1975)
OKLCH	oklch(56% 0.201 280.3)
XYZ	xyz(23.2211, 16.0192, 75.9819)
Luminance	0.1602 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CE5 #DDE55C

analogous

#5C98E5 #645CE5 #A95CE5

triadic

#645CE5 #E5645C #5CE564

tetradic

#645CE5 #E55C98 #DDE55C #5CE5A9

square

#645CE5 #E55C98 #DDE55C #5CE5A9

split-complementary

#645CE5 #E5A95C #98E55C

monochromatic

#241BAB #3227DD #645CE5 #9691ED #C8C6F6

Accessibility & contrast

On white

5.00

#645CE5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#645CE5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CE5

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CE5	#FFFFFF	#000000	##FFFFFF
##645CE5	1.00	5.00	4.20	5.00
#FFFFFF	5.00	1.00	21.00	1.00
#000000	4.20	21.00	1.00	21.00
##FFFFFF	5.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075E9

Deuteranopia (green-blind)

#006AE2

Tritanopia (blue-blind)

#1C7D98

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #645ce5;
/* rgb */ color: rgb(100, 92, 229);
/* oklch */ color: oklch(56.0% 0.201 280.3);

Tailwind

colors: {
  custom: {
    50: '#9b8aee',
    500: '#645ce5',
    950: '#000000',
  },
}

SCSS

$custom: #645ce5;
$custom-light: #9b8aee;
$custom-dark: #000000;

JSON

{
  "hex": "#645ce5",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 229
  },
  "hsl": {
    "h": 243.504,
    "s": 72.487,
    "l": 62.941
  },
  "oklch": {
    "l": 0.55997,
    "c": 0.20075,
    "h": 280.3
  },
  "luminance": 0.16021
}

Semantic roles & 50–950 ramp

primary

#645CE5

secondary

#E4E7B6

accent

#D511C9

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #645CE5

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

Preview Lab → · Contrast checker → · Palette generator →