#423AAE#423AAE

#423AAE is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.3% C 0.178 H 279.0°. Best body text is #FFFFFF at 8.58:1 contrast (WCAG AA passes).

Color values

HEX	#423AAE
RGB	rgb(66, 58, 174)
HSL	hsl(244, 50%, 45%)
HSV	hsv(244, 67%, 68%)
CMYK	cmyk(62.1%, 66.7%, 0%, 31.8%)
CIE-LAB	lab(32.35, 38.17, -60.87)
CIE-LCH	lch(32.35, 71.85, 302.09°)
OKLab	oklab(43.28% 0.0279 -0.1754)
OKLCH	oklch(43.28% 0.178 279)
XYZ	xyz(11.3974, 7.2395, 40.8330)
Luminance	0.0724 (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

#423AAE #A6AE3A

analogous

#3A6CAE #423AAE #7C3AAE

triadic

#423AAE #AE423A #3AAE42

tetradic

#423AAE #AE3A6C #A6AE3A #3AAE7C

square

#423AAE #AE3A6C #A6AE3A #3AAE7C

split-complementary

#423AAE #AE7C3A #6CAE3A

monochromatic

#1F1B52 #312B80 #423AAE #645CC9 #908AD8

Accessibility & contrast

On white

8.58

#423AAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#423AAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423AAE

8.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423AAE	#FFFFFF	#000000	##FFFFFF
##423AAE	1.00	8.58	2.45	8.58
#FFFFFF	8.58	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B2

Deuteranopia (green-blind)

#0047AC

Tritanopia (blue-blind)

#00586F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #423aae;
/* rgb */ color: rgb(66, 58, 174);
/* oklch */ color: oklch(43.3% 0.178 279.0);

Tailwind

colors: {
  custom: {
    50: '#8371c7',
    500: '#423aae',
    950: '#000000',
  },
}

SCSS

$custom: #423aae;
$custom-light: #8371c7;
$custom-dark: #000000;

JSON

{
  "hex": "#423aae",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 174
  },
  "hsl": {
    "h": 244.138,
    "s": 50,
    "l": 45.49
  },
  "oklch": {
    "l": 0.43281,
    "c": 0.1776,
    "h": 279
  },
  "luminance": 0.0724
}

Semantic roles & 50–950 ramp

primary

#423AAE

secondary

#BEC281

accent

#DA4ED0

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #423AAE

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

Preview Lab → · Contrast checker → · Palette generator →