#423CAC#423CAC

#423CAC is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.4% C 0.173 H 278.8°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#423CAC
RGB	rgb(66, 60, 172)
HSL	hsl(243, 48%, 45%)
HSV	hsv(243, 65%, 67%)
CMYK	cmyk(61.6%, 65.1%, 0%, 32.5%)
CIE-LAB	lab(32.63, 36.29, -59.21)
CIE-LCH	lch(32.63, 69.45, 301.51°)
OKLab	oklab(43.43% 0.0264 -0.1705)
OKLCH	oklch(43.43% 0.173 278.8)
XYZ	xyz(11.3066, 7.3677, 39.8480)
Luminance	0.0737 (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

#423CAC #A6AC3C

analogous

#3C6EAC #423CAC #7A3CAC

triadic

#423CAC #AC423C #3CAC42

tetradic

#423CAC #AC3C6E #A6AC3C #3CAC7A

square

#423CAC #AC3C6E #A6AC3C #3CAC7A

split-complementary

#423CAC #AC7A3C #6EAC3C

monochromatic

#1F1C51 #312C7F #423CAC #645EC7 #908CD7

Accessibility & contrast

On white

8.49

#423CAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#423CAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CAC

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423CAC	#FFFFFF	#000000	##FFFFFF
##423CAC	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B0

Deuteranopia (green-blind)

#0048AA

Tritanopia (blue-blind)

#00586E

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #423cac;
/* rgb */ color: rgb(66, 60, 172);
/* oklch */ color: oklch(43.4% 0.173 278.8);

Tailwind

colors: {
  custom: {
    50: '#8272c6',
    500: '#423cac',
    950: '#000000',
  },
}

SCSS

$custom: #423cac;
$custom-light: #8272c6;
$custom-dark: #000000;

JSON

{
  "hex": "#423cac",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 172
  },
  "hsl": {
    "h": 243.214,
    "s": 48.276,
    "l": 45.49
  },
  "oklch": {
    "l": 0.43434,
    "c": 0.17256,
    "h": 278.8
  },
  "luminance": 0.07369
}

Semantic roles & 50–950 ramp

primary

#423CAC

secondary

#BEC182

accent

#D850D1

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #423CAC

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

Preview Lab → · Contrast checker → · Palette generator →