#645DAF#645DAF

#645DAF is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.4% C 0.126 H 285.1°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#645DAF
RGB	rgb(100, 93, 175)
HSL	hsl(245, 34%, 53%)
HSV	hsv(245, 47%, 69%)
CMYK	cmyk(42.9%, 46.9%, 0%, 31.4%)
CIE-LAB	lab(43.70, 23.86, -42.99)
CIE-LCH	lch(43.70, 49.17, 299.03°)
OKLab	oklab(52.41% 0.0327 -0.1217)
OKLCH	oklch(52.41% 0.126 285.1)
XYZ	xyz(16.9055, 13.6325, 42.2897)
Luminance	0.1363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DAF #A8AF5D

analogous

#5D7FAF #645DAF #8D5DAF

triadic

#645DAF #AF645D #5DAF64

tetradic

#645DAF #AF5D7F #A8AF5D #5DAF8D

square

#645DAF #AF5D7F #A8AF5D #5DAF8D

split-complementary

#645DAF #AF8D5D #7FAF5D

monochromatic

#343061 #4A448A #645DAF #8B86C3 #B2AFD7

Accessibility & contrast

On white

5.64

#645DAF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#645DAF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DAF

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DAF	#FFFFFF	#000000	##FFFFFF
##645DAF	1.00	5.64	3.73	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D6AB2

Deuteranopia (green-blind)

#3B65AD

Tritanopia (blue-blind)

#4D6E7D

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #645daf;
/* rgb */ color: rgb(100, 93, 175);
/* oklch */ color: oklch(52.4% 0.126 285.1);

Tailwind

colors: {
  custom: {
    50: '#948bc7',
    500: '#645daf',
    950: '#000000',
  },
}

SCSS

$custom: #645daf;
$custom-light: #948bc7;
$custom-dark: #000000;

JSON

{
  "hex": "#645daf",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 175
  },
  "hsl": {
    "h": 245.122,
    "s": 33.884,
    "l": 52.549
  },
  "oklch": {
    "l": 0.52411,
    "c": 0.12603,
    "h": 285.1
  },
  "luminance": 0.13633
}

Semantic roles & 50–950 ramp

primary

#645DAF

secondary

#C3C6A2

accent

#CA5EC1

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0D0C13

muted

#7E7D82

Preview Lab

Preview with #645DAF

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

Preview Lab → · Contrast checker → · Palette generator →