#423CA1#423CA1

#423CA1 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.5% C 0.158 H 279.9°. Best body text is #FFFFFF at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#423CA1
RGB	rgb(66, 60, 161)
HSL	hsl(244, 46%, 43%)
HSV	hsv(244, 63%, 63%)
CMYK	cmyk(59%, 62.7%, 0%, 36.9%)
CIE-LAB	lab(31.72, 32.63, -54.09)
CIE-LCH	lch(31.72, 63.17, 301.11°)
OKLab	oklab(42.49% 0.0273 -0.1555)
OKLCH	oklch(42.49% 0.158 279.9)
XYZ	xyz(10.2936, 6.9625, 34.5128)
Luminance	0.0696 (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

#423CA1 #9BA13C

analogous

#3C68A1 #423CA1 #743CA1

triadic

#423CA1 #A1423C #3CA142

tetradic

#423CA1 #A13C68 #9BA13C #3CA174

square

#423CA1 #A13C68 #9BA13C #3CA174

split-complementary

#423CA1 #A1743C #68A13C

monochromatic

#1D1B48 #302B74 #423CA1 #5F59C1 #8A86D2

Accessibility & contrast

On white

8.78

#423CA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#423CA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CA1

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423CA1	#FFFFFF	#000000	##FFFFFF
##423CA1	1.00	8.78	2.39	8.78
#FFFFFF	8.78	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA4

Deuteranopia (green-blind)

#00479F

Tritanopia (blue-blind)

#045568

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #423ca1;
/* rgb */ color: rgb(66, 60, 161);
/* oklch */ color: oklch(42.5% 0.158 279.9);

Tailwind

colors: {
  custom: {
    50: '#8072be',
    500: '#423ca1',
    950: '#000000',
  },
}

SCSS

$custom: #423ca1;
$custom-light: #8072be;
$custom-dark: #000000;

JSON

{
  "hex": "#423ca1",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 161
  },
  "hsl": {
    "h": 243.564,
    "s": 45.701,
    "l": 43.333
  },
  "oklch": {
    "l": 0.42487,
    "c": 0.15784,
    "h": 279.9
  },
  "luminance": 0.06963
}

Semantic roles & 50–950 ramp

primary

#423CA1

secondary

#B8BC7D

accent

#D552CE

background

#F8F6FB

surface

#EFECF7

border

#CAC7D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #423CA1

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

Preview Lab → · Contrast checker → · Palette generator →