#645BEA#645BEA

#645BEA is a mid, highly saturated blue. Relative luminance 0.161; OKLCH L 56.2% C 0.208 H 280.1°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#645BEA
RGB	rgb(100, 91, 234)
HSL	hsl(244, 77%, 64%)
HSV	hsv(244, 61%, 92%)
CMYK	cmyk(57.3%, 61.1%, 0%, 8.2%)
CIE-LAB	lab(47.15, 43.16, -71.36)
CIE-LCH	lch(47.15, 83.40, 301.17°)
OKLab	oklab(56.22% 0.0367 -0.2051)
OKLCH	oklch(56.22% 0.208 280.1)
XYZ	xyz(23.8432, 16.1304, 79.6830)
Luminance	0.1613 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645BEA #E1EA5B

analogous

#5B99EA #645BEA #AB5BEA

triadic

#645BEA #EA645B #5BEA64

tetradic

#645BEA #EA5B99 #E1EA5B #5BEAAB

square

#645BEA #EA5B99 #E1EA5B #5BEAAB

split-complementary

#645BEA #EAAB5B #99EA5B

monochromatic

#2117B4 #3125E3 #645BEA #9791F1 #CBC8F8

Accessibility & contrast

On white

4.97

#645BEA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#645BEA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645BEA

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645BEA	#FFFFFF	#000000	##FFFFFF
##645BEA	1.00	4.97	4.23	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075EF

Deuteranopia (green-blind)

#006AE7

Tritanopia (blue-blind)

#0F7E9A

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #645bea;
/* rgb */ color: rgb(100, 91, 234);
/* oklch */ color: oklch(56.2% 0.208 280.1);

Tailwind

colors: {
  custom: {
    50: '#9c8af2',
    500: '#645bea',
    950: '#000000',
  },
}

SCSS

$custom: #645bea;
$custom-light: #9c8af2;
$custom-dark: #000000;

JSON

{
  "hex": "#645bea",
  "rgb": {
    "r": 100,
    "g": 91,
    "b": 234
  },
  "hsl": {
    "h": 243.776,
    "s": 77.297,
    "l": 63.725
  },
  "oklch": {
    "l": 0.5622,
    "c": 0.20835,
    "h": 280.1
  },
  "luminance": 0.16132
}

Semantic roles & 50–950 ramp

primary

#645BEA

secondary

#E6EAB7

accent

#DA0CCD

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #645BEA

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

Preview Lab → · Contrast checker → · Palette generator →