#645ABD#645ABD

#645ABD is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.8% C 0.150 H 284.6°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#645ABD
RGB	rgb(100, 90, 189)
HSL	hsl(246, 43%, 55%)
HSV	hsv(246, 52%, 74%)
CMYK	cmyk(47.1%, 52.4%, 0%, 25.9%)
CIE-LAB	lab(43.79, 29.91, -51.03)
CIE-LCH	lch(43.79, 59.15, 300.37°)
OKLab	oklab(52.75% 0.0378 -0.1453)
OKLCH	oklch(52.75% 0.15 284.6)
XYZ	xyz(18.0943, 13.6949, 49.8242)
Luminance	0.1370 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645ABD #B3BD5A

analogous

#5A81BD #645ABD #965ABD

triadic

#645ABD #BD645A #5ABD64

tetradic

#645ABD #BD5A81 #B3BD5A #5ABD96

square

#645ABD #BD5A81 #B3BD5A #5ABD96

split-complementary

#645ABD #BD965A #81BD5A

monochromatic

#342D70 #483E9C #645ABD #8D86CE #B6B1E0

Accessibility & contrast

On white

5.62

#645ABD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#645ABD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645ABD

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645ABD	#FFFFFF	#000000	##FFFFFF
##645ABD	1.00	5.62	3.74	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A6AC0

Deuteranopia (green-blind)

#2564BB

Tritanopia (blue-blind)

#466F83

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #645abd;
/* rgb */ color: rgb(100, 90, 189);
/* oklch */ color: oklch(52.8% 0.150 284.6);

Tailwind

colors: {
  custom: {
    50: '#9689d1',
    500: '#645abd',
    950: '#000000',
  },
}

SCSS

$custom: #645abd;
$custom-light: #9689d1;
$custom-dark: #000000;

JSON

{
  "hex": "#645abd",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 189
  },
  "hsl": {
    "h": 246.061,
    "s": 42.857,
    "l": 54.706
  },
  "oklch": {
    "l": 0.52752,
    "c": 0.15015,
    "h": 284.6
  },
  "luminance": 0.13696
}

Semantic roles & 50–950 ramp

primary

#645ABD

secondary

#CACEA5

accent

#D355C6

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0E0B14

muted

#7E7C82

Preview Lab

Preview with #645ABD

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

Preview Lab → · Contrast checker → · Palette generator →