#645EBE#645EBE

#645EBE is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.6% C 0.146 H 283.1°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#645EBE
RGB	rgb(100, 94, 190)
HSL	hsl(244, 42%, 56%)
HSV	hsv(244, 51%, 75%)
CMYK	cmyk(47.4%, 50.5%, 0%, 25.5%)
CIE-LAB	lab(44.85, 27.76, -49.92)
CIE-LCH	lch(44.85, 57.12, 299.08°)
OKLab	oklab(53.56% 0.0331 -0.142)
OKLCH	oklch(53.56% 0.146 283.1)
XYZ	xyz(18.5497, 14.4315, 50.5134)
Luminance	0.1443 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EBE #B8BE5E

analogous

#5E88BE #645EBE #945EBE

triadic

#645EBE #BE645E #5EBE64

tetradic

#645EBE #BE5E88 #B8BE5E #5EBE94

square

#645EBE #BE5E88 #B8BE5E #5EBE94

split-complementary

#645EBE #BE945E #88BE5E

monochromatic

#332E73 #46409F #645EBE #8E8AD0 #B8B5E1

Accessibility & contrast

On white

5.40

#645EBE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#645EBE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EBE

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EBE	#FFFFFF	#000000	##FFFFFF
##645EBE	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#326DC1

Deuteranopia (green-blind)

#2D67BC

Tritanopia (blue-blind)

#457385

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #645ebe;
/* rgb */ color: rgb(100, 94, 190);
/* oklch */ color: oklch(53.6% 0.146 283.1);

Tailwind

colors: {
  custom: {
    50: '#968bd2',
    500: '#645ebe',
    950: '#000000',
  },
}

SCSS

$custom: #645ebe;
$custom-light: #968bd2;
$custom-dark: #000000;

JSON

{
  "hex": "#645ebe",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 190
  },
  "hsl": {
    "h": 243.75,
    "s": 42.478,
    "l": 55.686
  },
  "oklch": {
    "l": 0.53561,
    "c": 0.14584,
    "h": 283.1
  },
  "luminance": 0.14432
}

Semantic roles & 50–950 ramp

primary

#645EBE

secondary

#CDD0A8

accent

#D256CA

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0C14

muted

#7E7D83

Preview Lab

Preview with #645EBE

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

Preview Lab → · Contrast checker → · Palette generator →