#423AAD#423AAD

#423AAD is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.2% C 0.176 H 279.1°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#423AAD
RGB	rgb(66, 58, 173)
HSL	hsl(244, 50%, 45%)
HSV	hsv(244, 66%, 68%)
CMYK	cmyk(61.8%, 66.5%, 0%, 32.2%)
CIE-LAB	lab(32.26, 37.84, -60.42)
CIE-LCH	lch(32.26, 71.29, 302.06°)
OKLab	oklab(43.19% 0.028 -0.1741)
OKLCH	oklch(43.19% 0.176 279.1)
XYZ	xyz(11.3002, 7.2006, 40.3214)
Luminance	0.0720 (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

#423AAD #A5AD3A

analogous

#3A6BAD #423AAD #7B3AAD

triadic

#423AAD #AD423A #3AAD42

tetradic

#423AAD #AD3A6B #A5AD3A #3AAD7B

square

#423AAD #AD3A6B #A5AD3A #3AAD7B

split-complementary

#423AAD #AD7B3A #6BAD3A

monochromatic

#1F1B51 #312B7F #423AAD #635CC8 #8F8AD8

Accessibility & contrast

On white

8.61

#423AAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#423AAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423AAD

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423AAD	#FFFFFF	#000000	##FFFFFF
##423AAD	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B1

Deuteranopia (green-blind)

#0047AB

Tritanopia (blue-blind)

#00586E

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #423aad;
/* rgb */ color: rgb(66, 58, 173);
/* oklch */ color: oklch(43.2% 0.176 279.1);

Tailwind

colors: {
  custom: {
    50: '#8271c6',
    500: '#423aad',
    950: '#000000',
  },
}

SCSS

$custom: #423aad;
$custom-light: #8271c6;
$custom-dark: #000000;

JSON

{
  "hex": "#423aad",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 173
  },
  "hsl": {
    "h": 244.174,
    "s": 49.784,
    "l": 45.294
  },
  "oklch": {
    "l": 0.43191,
    "c": 0.1763,
    "h": 279.1
  },
  "luminance": 0.07201
}

Semantic roles & 50–950 ramp

primary

#423AAD

secondary

#BDC281

accent

#D94ED0

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #423AAD

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

Preview Lab → · Contrast checker → · Palette generator →