#645FE3#645FE3

#645FE3 is a mid, vivid blue. Relative luminance 0.164; OKLCH L 56.4% C 0.194 H 279.8°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#645FE3
RGB	rgb(100, 95, 227)
HSL	hsl(242, 70%, 63%)
HSV	hsv(242, 58%, 89%)
CMYK	cmyk(55.9%, 58.1%, 0%, 11%)
CIE-LAB	lab(47.54, 38.62, -66.76)
CIE-LCH	lch(47.54, 77.13, 300.05°)
OKLab	oklab(56.35% 0.0332 -0.1916)
OKLCH	oklch(56.35% 0.194 279.8)
XYZ	xyz(23.2085, 16.4383, 74.6081)
Luminance	0.1644 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FE3 #DEE35F

analogous

#5F9CE3 #645FE3 #A65FE3

triadic

#645FE3 #E3645F #5FE364

tetradic

#645FE3 #E35F9C #DEE35F #5FE3A6

square

#645FE3 #E35F9C #DEE35F #5FE3A6

split-complementary

#645FE3 #E3A65F #9CE35F

monochromatic

#231EAA #322BDA #645FE3 #9693EC #C9C7F5

Accessibility & contrast

On white

4.90

#645FE3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#645FE3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FE3

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FE3	#FFFFFF	#000000	##FFFFFF
##645FE3	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)

#0076E7

Deuteranopia (green-blind)

#006CE0

Tritanopia (blue-blind)

#1F7E98

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #645fe3;
/* rgb */ color: rgb(100, 95, 227);
/* oklch */ color: oklch(56.4% 0.194 279.8);

Tailwind

colors: {
  custom: {
    50: '#9b8ced',
    500: '#645fe3',
    950: '#000000',
  },
}

SCSS

$custom: #645fe3;
$custom-light: #9b8ced;
$custom-dark: #000000;

JSON

{
  "hex": "#645fe3",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 227
  },
  "hsl": {
    "h": 242.273,
    "s": 70.213,
    "l": 63.137
  },
  "oklch": {
    "l": 0.56353,
    "c": 0.19442,
    "h": 279.8
  },
  "luminance": 0.1644
}

Semantic roles & 50–950 ramp

primary

#645FE3

secondary

#E5E7B7

accent

#D213CB

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #645FE3

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

Preview Lab → · Contrast checker → · Palette generator →