#645ABE#645ABE

#645ABE is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.8% C 0.152 H 284.5°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#645ABE
RGB	rgb(100, 90, 190)
HSL	hsl(246, 43%, 55%)
HSV	hsv(246, 53%, 75%)
CMYK	cmyk(47.4%, 52.6%, 0%, 25.5%)
CIE-LAB	lab(43.86, 30.21, -51.51)
CIE-LCH	lch(43.86, 59.71, 300.39°)
OKLab	oklab(52.82% 0.0379 -0.1467)
OKLCH	oklch(52.82% 0.152 284.5)
XYZ	xyz(18.2032, 13.7385, 50.3979)
Luminance	0.1374 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645ABE #B4BE5A

analogous

#5A82BE #645ABE #965ABE

triadic

#645ABE #BE645A #5ABE64

tetradic

#645ABE #BE5A82 #B4BE5A #5ABE96

square

#645ABE #BE5A82 #B4BE5A #5ABE96

split-complementary

#645ABE #BE965A #82BE5A

monochromatic

#332D71 #473E9D #645ABE #8D86CF #B6B2E1

Accessibility & contrast

On white

5.60

#645ABE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#645ABE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645ABE

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645ABE	#FFFFFF	#000000	##FFFFFF
##645ABE	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#286BC1

Deuteranopia (green-blind)

#2465BC

Tritanopia (blue-blind)

#457083

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #645abe;
/* rgb */ color: rgb(100, 90, 190);
/* oklch */ color: oklch(52.8% 0.152 284.5);

Tailwind

colors: {
  custom: {
    50: '#9689d2',
    500: '#645abe',
    950: '#000000',
  },
}

SCSS

$custom: #645abe;
$custom-light: #9689d2;
$custom-dark: #000000;

JSON

{
  "hex": "#645abe",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 190
  },
  "hsl": {
    "h": 246,
    "s": 43.478,
    "l": 54.902
  },
  "oklch": {
    "l": 0.52819,
    "c": 0.15153,
    "h": 284.5
  },
  "luminance": 0.13739
}

Semantic roles & 50–950 ramp

primary

#645ABE

secondary

#CBCFA5

accent

#D355C7

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0B14

muted

#7E7C83

Preview Lab

Preview with #645ABE

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

Preview Lab → · Contrast checker → · Palette generator →