#645FAE#645FAE

#645FAE is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.7% C 0.122 H 284.3°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#645FAE
RGB	rgb(100, 95, 174)
HSL	hsl(244, 33%, 53%)
HSV	hsv(244, 45%, 68%)
CMYK	cmyk(42.5%, 45.4%, 0%, 31.8%)
CIE-LAB	lab(44.16, 22.32, -41.67)
CIE-LCH	lch(44.16, 47.27, 298.18°)
OKLab	oklab(52.74% 0.03 -0.1178)
OKLCH	oklch(52.74% 0.122 284.3)
XYZ	xyz(16.9855, 13.9491, 41.8337)
Luminance	0.1395 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FAE #A9AE5F

analogous

#5F82AE #645FAE #8B5FAE

triadic

#645FAE #AE645F #5FAE64

tetradic

#645FAE #AE5F82 #A9AE5F #5FAE8B

square

#645FAE #AE5F82 #A9AE5F #5FAE8B

split-complementary

#645FAE #AE8B5F #82AE5F

monochromatic

#343161 #4A468A #645FAE #8B88C3 #B3B0D7

Accessibility & contrast

On white

5.54

#645FAE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#645FAE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FAE

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FAE	#FFFFFF	#000000	##FFFFFF
##645FAE	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#416BB1

Deuteranopia (green-blind)

#3E66AC

Tritanopia (blue-blind)

#4E6F7E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #645fae;
/* rgb */ color: rgb(100, 95, 174);
/* oklch */ color: oklch(52.7% 0.122 284.3);

Tailwind

colors: {
  custom: {
    50: '#948cc6',
    500: '#645fae',
    950: '#000000',
  },
}

SCSS

$custom: #645fae;
$custom-light: #948cc6;
$custom-dark: #000000;

JSON

{
  "hex": "#645fae",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 174
  },
  "hsl": {
    "h": 243.797,
    "s": 32.78,
    "l": 52.745
  },
  "oklch": {
    "l": 0.52739,
    "c": 0.1216,
    "h": 284.3
  },
  "luminance": 0.1395
}

Semantic roles & 50–950 ramp

primary

#645FAE

secondary

#C3C6A3

accent

#C95FC2

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0D0C13

muted

#7E7D82

Preview Lab

Preview with #645FAE

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

Preview Lab → · Contrast checker → · Palette generator →