#423EA3#423EA3

#423EA3 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.0% C 0.158 H 279.2°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#423EA3
RGB	rgb(66, 62, 163)
HSL	hsl(242, 45%, 44%)
HSV	hsv(242, 62%, 64%)
CMYK	cmyk(59.5%, 62%, 0%, 36.1%)
CIE-LAB	lab(32.36, 32.05, -54.25)
CIE-LCH	lch(32.36, 63.01, 300.57°)
OKLab	oklab(43.01% 0.0252 -0.1559)
OKLCH	oklch(43.01% 0.158 279.2)
XYZ	xyz(10.5782, 7.2471, 35.4846)
Luminance	0.0725 (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

#423EA3 #9FA33E

analogous

#3E6DA3 #423EA3 #753EA3

triadic

#423EA3 #A3423E #3EA342

tetradic

#423EA3 #A33E6D #9FA33E #3EA375

square

#423EA3 #A33E6D #9FA33E #3EA375

split-complementary

#423EA3 #A3753E #6DA33E

monochromatic

#1E1C4A #302D77 #423EA3 #615DC1 #8C89D2

Accessibility & contrast

On white

8.57

#423EA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#423EA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423EA3

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423EA3	#FFFFFF	#000000	##FFFFFF
##423EA3	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A6

Deuteranopia (green-blind)

#0048A1

Tritanopia (blue-blind)

#00576A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #423ea3;
/* rgb */ color: rgb(66, 62, 163);
/* oklch */ color: oklch(43.0% 0.158 279.2);

Tailwind

colors: {
  custom: {
    50: '#8073bf',
    500: '#423ea3',
    950: '#000000',
  },
}

SCSS

$custom: #423ea3;
$custom-light: #8073bf;
$custom-dark: #000000;

JSON

{
  "hex": "#423ea3",
  "rgb": {
    "r": 66,
    "g": 62,
    "b": 163
  },
  "hsl": {
    "h": 242.376,
    "s": 44.889,
    "l": 44.118
  },
  "oklch": {
    "l": 0.43008,
    "c": 0.15797,
    "h": 279.2
  },
  "luminance": 0.07248
}

Semantic roles & 50–950 ramp

primary

#423EA3

secondary

#BABD80

accent

#D553CF

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #423EA3

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

Preview Lab → · Contrast checker → · Palette generator →