#645AE6#645AE6

#645AE6 is a mid, highly saturated blue. Relative luminance 0.157; OKLCH L 55.7% C 0.204 H 280.7°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#645AE6
RGB	rgb(100, 90, 230)
HSL	hsl(244, 74%, 63%)
HSV	hsv(244, 61%, 90%)
CMYK	cmyk(56.5%, 60.9%, 0%, 9.8%)
CIE-LAB	lab(46.62, 42.51, -69.96)
CIE-LCH	lch(46.62, 81.86, 301.29°)
OKLab	oklab(55.74% 0.0378 -0.201)
OKLCH	oklch(55.74% 0.205 280.7)
XYZ	xyz(23.1902, 15.7333, 76.6624)
Luminance	0.1573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645AE6 #DCE65A

analogous

#5A96E6 #645AE6 #AA5AE6

triadic

#645AE6 #E6645A #5AE664

tetradic

#645AE6 #E65A96 #DCE65A #5AE6AA

square

#645AE6 #E65A96 #DCE65A #5AE6AA

split-complementary

#645AE6 #E6AA5A #96E65A

monochromatic

#241AAC #3225DE #645AE6 #968FEE #C8C4F6

Accessibility & contrast

On white

5.06

#645AE6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#645AE6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645AE6

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645AE6	#FFFFFF	#000000	##FFFFFF
##645AE6	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074EB

Deuteranopia (green-blind)

#0069E3

Tritanopia (blue-blind)

#1B7C98

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #645ae6;
/* rgb */ color: rgb(100, 90, 230);
/* oklch */ color: oklch(55.7% 0.204 280.7);

Tailwind

colors: {
  custom: {
    50: '#9b89ef',
    500: '#645ae6',
    950: '#000000',
  },
}

SCSS

$custom: #645ae6;
$custom-light: #9b89ef;
$custom-dark: #000000;

JSON

{
  "hex": "#645ae6",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 230
  },
  "hsl": {
    "h": 244.286,
    "s": 73.684,
    "l": 62.745
  },
  "oklch": {
    "l": 0.55743,
    "c": 0.2045,
    "h": 280.7
  },
  "luminance": 0.15735
}

Semantic roles & 50–950 ramp

primary

#645AE6

secondary

#E4E7B5

accent

#D610C8

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0B17

muted

#7F7C85

Preview Lab

Preview with #645AE6

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

Preview Lab → · Contrast checker → · Palette generator →