#645DAE#645DAE

#645DAE is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.3% C 0.125 H 285.2°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#645DAE
RGB	rgb(100, 93, 174)
HSL	hsl(245, 33%, 52%)
HSV	hsv(245, 47%, 68%)
CMYK	cmyk(42.5%, 46.6%, 0%, 31.8%)
CIE-LAB	lab(43.64, 23.56, -42.49)
CIE-LCH	lch(43.64, 48.59, 299.01°)
OKLab	oklab(52.35% 0.0326 -0.1202)
OKLCH	oklch(52.35% 0.125 285.2)
XYZ	xyz(16.8077, 13.5934, 41.7744)
Luminance	0.1359 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DAE #A7AE5D

analogous

#5D7FAE #645DAE #8C5DAE

triadic

#645DAE #AE645D #5DAE64

tetradic

#645DAE #AE5D7F #A7AE5D #5DAE8C

square

#645DAE #AE5D7F #A7AE5D #5DAE8C

split-complementary

#645DAE #AE8C5D #7FAE5D

monochromatic

#343060 #4B4589 #645DAE #8B86C2 #B2AFD7

Accessibility & contrast

On white

5.65

#645DAE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#645DAE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DAE

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DAE	#FFFFFF	#000000	##FFFFFF
##645DAE	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E69B1

Deuteranopia (green-blind)

#3C65AC

Tritanopia (blue-blind)

#4E6D7D

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #645dae;
/* rgb */ color: rgb(100, 93, 174);
/* oklch */ color: oklch(52.3% 0.125 285.2);

Tailwind

colors: {
  custom: {
    50: '#948bc6',
    500: '#645dae',
    950: '#000000',
  },
}

SCSS

$custom: #645dae;
$custom-light: #948bc6;
$custom-dark: #000000;

JSON

{
  "hex": "#645dae",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 174
  },
  "hsl": {
    "h": 245.185,
    "s": 33.333,
    "l": 52.353
  },
  "oklch": {
    "l": 0.52349,
    "c": 0.12459,
    "h": 285.2
  },
  "luminance": 0.13594
}

Semantic roles & 50–950 ramp

primary

#645DAE

secondary

#C2C5A2

accent

#C95EC0

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0D0C13

muted

#7E7D82

Preview Lab

Preview with #645DAE

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

Preview Lab → · Contrast checker → · Palette generator →