#645CC0#645CC0

#645CC0 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.3% C 0.151 H 283.6°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#645CC0
RGB	rgb(100, 92, 192)
HSL	hsl(245, 44%, 56%)
HSV	hsv(245, 52%, 75%)
CMYK	cmyk(47.9%, 52.1%, 0%, 24.7%)
CIE-LAB	lab(44.47, 29.60, -51.68)
CIE-LCH	lch(44.47, 59.55, 299.80°)
OKLab	oklab(53.32% 0.0356 -0.1472)
OKLCH	oklch(53.32% 0.151 283.6)
XYZ	xyz(18.5943, 14.1685, 51.6140)
Luminance	0.1417 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CC0 #B8C05C

analogous

#5C86C0 #645CC0 #965CC0

triadic

#645CC0 #C0645C #5CC064

tetradic

#645CC0 #C05C86 #B8C05C #5CC096

square

#645CC0 #C05C86 #B8C05C #5CC096

split-complementary

#645CC0 #C0965C #86C05C

monochromatic

#332D75 #463EA1 #645CC0 #8E88D1 #B8B4E2

Accessibility & contrast

On white

5.48

#645CC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#645CC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CC0

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CC0	#FFFFFF	#000000	##FFFFFF
##645CC0	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B6CC4

Deuteranopia (green-blind)

#2566BE

Tritanopia (blue-blind)

#447285

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #645cc0;
/* rgb */ color: rgb(100, 92, 192);
/* oklch */ color: oklch(53.3% 0.151 283.6);

Tailwind

colors: {
  custom: {
    50: '#968ad4',
    500: '#645cc0',
    950: '#000000',
  },
}

SCSS

$custom: #645cc0;
$custom-light: #968ad4;
$custom-dark: #000000;

JSON

{
  "hex": "#645cc0",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 192
  },
  "hsl": {
    "h": 244.8,
    "s": 44.248,
    "l": 55.686
  },
  "oklch": {
    "l": 0.53322,
    "c": 0.15146,
    "h": 283.6
  },
  "luminance": 0.14169
}

Semantic roles & 50–950 ramp

primary

#645CC0

secondary

#CDD1A7

accent

#D454CA

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0B14

muted

#7E7C83

Preview Lab

Preview with #645CC0

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

Preview Lab → · Contrast checker → · Palette generator →