#645ABB#645ABB

#645ABB is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.6% C 0.147 H 284.8°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#645ABB
RGB	rgb(100, 90, 187)
HSL	hsl(246, 42%, 54%)
HSV	hsv(246, 52%, 73%)
CMYK	cmyk(46.5%, 51.9%, 0%, 26.7%)
CIE-LAB	lab(43.67, 29.30, -50.07)
CIE-LCH	lch(43.67, 58.01, 300.34°)
OKLab	oklab(52.62% 0.0377 -0.1425)
OKLCH	oklch(52.62% 0.147 284.8)
XYZ	xyz(17.8787, 13.6087, 48.6888)
Luminance	0.1361 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645ABB #B1BB5A

analogous

#5A81BB #645ABB #955ABB

triadic

#645ABB #BB645A #5ABB64

tetradic

#645ABB #BB5A81 #B1BB5A #5ABB95

square

#645ABB #BB5A81 #B1BB5A #5ABB95

split-complementary

#645ABB #BB955A #81BB5A

monochromatic

#342D6D #483F99 #645ABB #8D85CD #B5B1DF

Accessibility & contrast

On white

5.64

#645ABB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#645ABB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645ABB

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645ABB	#FFFFFF	#000000	##FFFFFF
##645ABB	1.00	5.64	3.72	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C6ABE

Deuteranopia (green-blind)

#2864B9

Tritanopia (blue-blind)

#476F82

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #645abb;
/* rgb */ color: rgb(100, 90, 187);
/* oklch */ color: oklch(52.6% 0.147 284.8);

Tailwind

colors: {
  custom: {
    50: '#9689d0',
    500: '#645abb',
    950: '#000000',
  },
}

SCSS

$custom: #645abb;
$custom-light: #9689d0;
$custom-dark: #000000;

JSON

{
  "hex": "#645abb",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 187
  },
  "hsl": {
    "h": 246.186,
    "s": 41.631,
    "l": 54.314
  },
  "oklch": {
    "l": 0.52617,
    "c": 0.14738,
    "h": 284.8
  },
  "luminance": 0.1361
}

Semantic roles & 50–950 ramp

primary

#645ABB

secondary

#C9CDA4

accent

#D156C5

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0E0B14

muted

#7E7C82

Preview Lab

Preview with #645ABB

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

Preview Lab → · Contrast checker → · Palette generator →