#645CE0#645CE0

#645CE0 is a mid, vivid blue. Relative luminance 0.157; OKLCH L 55.6% C 0.194 H 280.7°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#645CE0
RGB	rgb(100, 92, 224)
HSL	hsl(244, 68%, 62%)
HSV	hsv(244, 59%, 88%)
CMYK	cmyk(55.4%, 58.9%, 0%, 12.2%)
CIE-LAB	lab(46.64, 39.47, -66.54)
CIE-LCH	lch(46.64, 77.36, 300.68°)
OKLab	oklab(55.62% 0.0362 -0.1909)
OKLCH	oklch(55.62% 0.194 280.7)
XYZ	xyz(22.5330, 15.7440, 72.3581)
Luminance	0.1575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CE0 #D8E05C

analogous

#5C96E0 #645CE0 #A65CE0

triadic

#645CE0 #E0645C #5CE064

tetradic

#645CE0 #E05C96 #D8E05C #5CE0A6

square

#645CE0 #E05C96 #D8E05C #5CE0A6

split-complementary

#645CE0 #E0A65C #96E05C

monochromatic

#271FA3 #3329D6 #645CE0 #958FEA #C6C3F4

Accessibility & contrast

On white

5.06

#645CE0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#645CE0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CE0

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CE0	#FFFFFF	#000000	##FFFFFF
##645CE0	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)

#0073E4

Deuteranopia (green-blind)

#006ADD

Tritanopia (blue-blind)

#257B95

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #645ce0;
/* rgb */ color: rgb(100, 92, 224);
/* oklch */ color: oklch(55.6% 0.194 280.7);

Tailwind

colors: {
  custom: {
    50: '#9a8aeb',
    500: '#645ce0',
    950: '#000000',
  },
}

SCSS

$custom: #645ce0;
$custom-light: #9a8aeb;
$custom-dark: #000000;

JSON

{
  "hex": "#645ce0",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 224
  },
  "hsl": {
    "h": 243.636,
    "s": 68.041,
    "l": 61.961
  },
  "oklch": {
    "l": 0.55615,
    "c": 0.19431,
    "h": 280.7
  },
  "luminance": 0.15745
}

Semantic roles & 50–950 ramp

primary

#645CE0

secondary

#E1E4B4

accent

#D016C5

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #645CE0

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

Preview Lab → · Contrast checker → · Palette generator →