#645FE1#645FE1

#645FE1 is a mid, vivid blue. Relative luminance 0.163; OKLCH L 56.2% C 0.192 H 280.0°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#645FE1
RGB	rgb(100, 95, 225)
HSL	hsl(242, 68%, 63%)
HSV	hsv(242, 58%, 88%)
CMYK	cmyk(55.6%, 57.8%, 0%, 11.8%)
CIE-LAB	lab(47.40, 37.99, -65.86)
CIE-LCH	lch(47.40, 76.03, 299.98°)
OKLab	oklab(56.2% 0.0332 -0.1889)
OKLCH	oklch(56.2% 0.192 280)
XYZ	xyz(22.9341, 16.3285, 73.1628)
Luminance	0.1633 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FE1 #DCE15F

analogous

#5F9BE1 #645FE1 #A55FE1

triadic

#645FE1 #E1645F #5FE164

tetradic

#645FE1 #E15F9B #DCE15F #5FE1A5

square

#645FE1 #E15F9B #DCE15F #5FE1A5

split-complementary

#645FE1 #E1A55F #9BE15F

monochromatic

#241FA6 #322BD7 #645FE1 #9693EB #C8C6F4

Accessibility & contrast

On white

4.92

#645FE1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#645FE1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FE1

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FE1	#FFFFFF	#000000	##FFFFFF
##645FE1	1.00	4.92	4.27	4.92
#FFFFFF	4.92	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075E5

Deuteranopia (green-blind)

#006BDE

Tritanopia (blue-blind)

#237E97

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #645fe1;
/* rgb */ color: rgb(100, 95, 225);
/* oklch */ color: oklch(56.2% 0.192 280.0);

Tailwind

colors: {
  custom: {
    50: '#9a8ceb',
    500: '#645fe1',
    950: '#000000',
  },
}

SCSS

$custom: #645fe1;
$custom-light: #9a8ceb;
$custom-dark: #000000;

JSON

{
  "hex": "#645fe1",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 225
  },
  "hsl": {
    "h": 242.308,
    "s": 68.421,
    "l": 62.745
  },
  "oklch": {
    "l": 0.56203,
    "c": 0.1918,
    "h": 280
  },
  "luminance": 0.1633
}

Semantic roles & 50–950 ramp

primary

#645FE1

secondary

#E4E5B6

accent

#D015C9

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #645FE1

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

Preview Lab → · Contrast checker → · Palette generator →