#423CA7#423CA7

#423CA7 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.0% C 0.166 H 279.3°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#423CA7
RGB	rgb(66, 60, 167)
HSL	hsl(243, 47%, 45%)
HSV	hsv(243, 64%, 65%)
CMYK	cmyk(60.5%, 64.1%, 0%, 34.5%)
CIE-LAB	lab(32.21, 34.63, -56.90)
CIE-LCH	lch(32.21, 66.61, 301.33°)
OKLab	oklab(43% 0.0268 -0.1637)
OKLCH	oklch(43% 0.166 279.3)
XYZ	xyz(10.8355, 7.1792, 37.3665)
Luminance	0.0718 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423CA7 #A1A73C

analogous

#3C6CA7 #423CA7 #773CA7

triadic

#423CA7 #A7423C #3CA742

tetradic

#423CA7 #A73C6C #A1A73C #3CA777

square

#423CA7 #A73C6C #A1A73C #3CA777

split-complementary

#423CA7 #A7773C #6CA73C

monochromatic

#1E1C4D #302C7A #423CA7 #625CC4 #8D89D5

Accessibility & contrast

On white

8.62

#423CA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#423CA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CA7

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423CA7	#FFFFFF	#000000	##FFFFFF
##423CA7	1.00	8.62	2.44	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AA

Deuteranopia (green-blind)

#0048A5

Tritanopia (blue-blind)

#00576C

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #423ca7;
/* rgb */ color: rgb(66, 60, 167);
/* oklch */ color: oklch(43.0% 0.166 279.3);

Tailwind

colors: {
  custom: {
    50: '#8172c2',
    500: '#423ca7',
    950: '#000000',
  },
}

SCSS

$custom: #423ca7;
$custom-light: #8172c2;
$custom-dark: #000000;

JSON

{
  "hex": "#423ca7",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 167
  },
  "hsl": {
    "h": 243.364,
    "s": 47.137,
    "l": 44.51
  },
  "oklch": {
    "l": 0.42999,
    "c": 0.16593,
    "h": 279.3
  },
  "luminance": 0.0718
}

Semantic roles & 50–950 ramp

primary

#423CA7

secondary

#BBBF80

accent

#D751CF

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #423CA7

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

Preview Lab → · Contrast checker → · Palette generator →