#645DCA#645DCA

#645DCA is a mid, vivid blue. Relative luminance 0.148; OKLCH L 54.2% C 0.164 H 282.3°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#645DCA
RGB	rgb(100, 93, 202)
HSL	hsl(244, 51%, 58%)
HSV	hsv(244, 54%, 79%)
CMYK	cmyk(50.5%, 54%, 0%, 20.8%)
CIE-LAB	lab(45.36, 32.05, -56.03)
CIE-LCH	lch(45.36, 64.55, 299.77°)
OKLab	oklab(54.19% 0.035 -0.16)
OKLCH	oklch(54.19% 0.164 282.3)
XYZ	xyz(19.8273, 14.8012, 57.6778)
Luminance	0.1480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DCA #C3CA5D

analogous

#5D8CCA #645DCA #9A5DCA

triadic

#645DCA #CA645D #5DCA64

tetradic

#645DCA #CA5D8C #C3CA5D #5DCA9A

square

#645DCA #CA5D8C #C3CA5D #5DCA9A

split-complementary

#645DCA #CA9A5D #8CCA5D

monochromatic

#302B82 #413AB0 #645DCA #908BD9 #BCB9E8

Accessibility & contrast

On white

5.30

#645DCA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#645DCA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DCA

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DCA	#FFFFFF	#000000	##FFFFFF
##645DCA	1.00	5.30	3.96	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F6FCE

Deuteranopia (green-blind)

#1368C8

Tritanopia (blue-blind)

#3D758A

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #645dca;
/* rgb */ color: rgb(100, 93, 202);
/* oklch */ color: oklch(54.2% 0.164 282.3);

Tailwind

colors: {
  custom: {
    50: '#978bdb',
    500: '#645dca',
    950: '#000000',
  },
}

SCSS

$custom: #645dca;
$custom-light: #978bdb;
$custom-dark: #000000;

JSON

{
  "hex": "#645dca",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 202
  },
  "hsl": {
    "h": 243.853,
    "s": 50.698,
    "l": 57.843
  },
  "oklch": {
    "l": 0.5419,
    "c": 0.16379,
    "h": 282.3
  },
  "luminance": 0.14802
}

Semantic roles & 50–950 ramp

primary

#645DCA

secondary

#D4D7AC

accent

#DA4ED1

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #645DCA

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

Preview Lab → · Contrast checker → · Palette generator →