#645DE4#645DE4

#645DE4 is a mid, vivid blue. Relative luminance 0.161; OKLCH L 56.1% C 0.198 H 280.2°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#645DE4
RGB	rgb(100, 93, 228)
HSL	hsl(243, 71%, 63%)
HSV	hsv(243, 59%, 89%)
CMYK	cmyk(56.1%, 59.2%, 0%, 10.6%)
CIE-LAB	lab(47.15, 40.12, -67.96)
CIE-LCH	lch(47.15, 78.92, 300.56°)
OKLab	oklab(56.09% 0.0351 -0.1951)
OKLCH	oklch(56.09% 0.198 280.2)
XYZ	xyz(23.1691, 16.1379, 75.2778)
Luminance	0.1614 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DE4 #DDE45D

analogous

#5D99E4 #645DE4 #A75DE4

triadic

#645DE4 #E4645D #5DE464

tetradic

#645DE4 #E45D99 #DDE45D #5DE4A7

square

#645DE4 #E45D99 #DDE45D #5DE4A7

split-complementary

#645DE4 #E4A75D #99E45D

monochromatic

#241CAA #3229DB #645DE4 #9691ED #C8C6F5

Accessibility & contrast

On white

4.97

#645DE4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#645DE4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DE4

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DE4	#FFFFFF	#000000	##FFFFFF
##645DE4	1.00	4.97	4.23	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075E8

Deuteranopia (green-blind)

#006BE1

Tritanopia (blue-blind)

#1E7D98

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #645de4;
/* rgb */ color: rgb(100, 93, 228);
/* oklch */ color: oklch(56.1% 0.198 280.2);

Tailwind

colors: {
  custom: {
    50: '#9b8bed',
    500: '#645de4',
    950: '#000000',
  },
}

SCSS

$custom: #645de4;
$custom-light: #9b8bed;
$custom-dark: #000000;

JSON

{
  "hex": "#645de4",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 228
  },
  "hsl": {
    "h": 243.111,
    "s": 71.429,
    "l": 62.941
  },
  "oklch": {
    "l": 0.56088,
    "c": 0.19822,
    "h": 280.2
  },
  "luminance": 0.16139
}

Semantic roles & 50–950 ramp

primary

#645DE4

secondary

#E4E7B6

accent

#D312C9

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #645DE4

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

Preview Lab → · Contrast checker → · Palette generator →