#645FE5#645FE5

#645FE5 is a mid, vivid blue. Relative luminance 0.166; OKLCH L 56.5% C 0.197 H 279.7°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#645FE5
RGB	rgb(100, 95, 229)
HSL	hsl(242, 72%, 64%)
HSV	hsv(242, 59%, 90%)
CMYK	cmyk(56.3%, 58.5%, 0%, 10.2%)
CIE-LAB	lab(47.69, 39.24, -67.66)
CIE-LCH	lch(47.69, 78.22, 300.11°)
OKLab	oklab(56.5% 0.0332 -0.1942)
OKLCH	oklch(56.5% 0.197 279.7)
XYZ	xyz(23.4861, 16.5493, 76.0703)
Luminance	0.1655 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FE5 #E0E55F

analogous

#5F9DE5 #645FE5 #A75FE5

triadic

#645FE5 #E5645F #5FE564

tetradic

#645FE5 #E55F9D #E0E55F #5FE5A7

square

#645FE5 #E55F9D #E0E55F #5FE5A7

split-complementary

#645FE5 #E5A75F #9DE55F

monochromatic

#221CAD #312ADC #645FE5 #9794EE #CAC8F6

Accessibility & contrast

On white

4.87

#645FE5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#645FE5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FE5

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FE5	#FFFFFF	#000000	##FFFFFF
##645FE5	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076E9

Deuteranopia (green-blind)

#006CE2

Tritanopia (blue-blind)

#1B7F99

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #645fe5;
/* rgb */ color: rgb(100, 95, 229);
/* oklch */ color: oklch(56.5% 0.197 279.7);

Tailwind

colors: {
  custom: {
    50: '#9b8dee',
    500: '#645fe5',
    950: '#000000',
  },
}

SCSS

$custom: #645fe5;
$custom-light: #9b8dee;
$custom-dark: #000000;

JSON

{
  "hex": "#645fe5",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 229
  },
  "hsl": {
    "h": 242.239,
    "s": 72.043,
    "l": 63.529
  },
  "oklch": {
    "l": 0.56503,
    "c": 0.19701,
    "h": 279.7
  },
  "luminance": 0.16551
}

Semantic roles & 50–950 ramp

primary

#645FE5

secondary

#E6E8B8

accent

#D411CD

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #645FE5

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

Preview Lab → · Contrast checker → · Palette generator →