#423AAC#423AAC

#423AAC is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.1% C 0.175 H 279.2°. Best body text is #FFFFFF at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#423AAC
RGB	rgb(66, 58, 172)
HSL	hsl(244, 50%, 45%)
HSV	hsv(244, 66%, 67%)
CMYK	cmyk(61.6%, 66.3%, 0%, 32.5%)
CIE-LAB	lab(32.17, 37.52, -59.96)
CIE-LCH	lch(32.17, 70.73, 302.03°)
OKLab	oklab(43.1% 0.0281 -0.1727)
OKLCH	oklch(43.1% 0.175 279.2)
XYZ	xyz(11.2038, 7.1621, 39.8137)
Luminance	0.0716 (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

#423AAC #A4AC3A

analogous

#3A6BAC #423AAC #7B3AAC

triadic

#423AAC #AC423A #3AAC42

tetradic

#423AAC #AC3A6B #A4AC3A #3AAC7B

square

#423AAC #AC3A6B #A4AC3A #3AAC7B

split-complementary

#423AAC #AC7B3A #6BAC3A

monochromatic

#1F1B50 #302B7E #423AAC #635BC8 #8F89D7

Accessibility & contrast

On white

8.63

#423AAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#423AAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423AAC

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423AAC	#FFFFFF	#000000	##FFFFFF
##423AAC	1.00	8.63	2.43	8.63
#FFFFFF	8.63	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B0

Deuteranopia (green-blind)

#0047AA

Tritanopia (blue-blind)

#00576E

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #423aac;
/* rgb */ color: rgb(66, 58, 172);
/* oklch */ color: oklch(43.1% 0.175 279.2);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#423aac",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 172
  },
  "hsl": {
    "h": 244.211,
    "s": 49.565,
    "l": 45.098
  },
  "oklch": {
    "l": 0.43102,
    "c": 0.17499,
    "h": 279.2
  },
  "luminance": 0.07163
}

Semantic roles & 50–950 ramp

primary

#423AAC

secondary

#BDC280

accent

#D94FCF

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #423AAC

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

Preview Lab → · Contrast checker → · Palette generator →