#423FA2#423FA2

#423FA2 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.1% C 0.155 H 279.0°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#423FA2
RGB	rgb(66, 63, 162)
HSL	hsl(242, 44%, 44%)
HSV	hsv(242, 61%, 64%)
CMYK	cmyk(59.3%, 61.1%, 0%, 36.5%)
CIE-LAB	lab(32.53, 31.08, -53.38)
CIE-LCH	lch(32.53, 61.77, 300.21°)
OKLab	oklab(43.1% 0.0243 -0.1534)
OKLCH	oklch(43.1% 0.155 279)
XYZ	xyz(10.5438, 7.3212, 35.0329)
Luminance	0.0732 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.99

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423FA2 #9FA23F

analogous

#3F6EA2 #423FA2 #743FA2

triadic

#423FA2 #A2423F #3FA242

tetradic

#423FA2 #A23F6E #9FA23F #3FA274

square

#423FA2 #A23F6E #9FA23F #3FA274

split-complementary

#423FA2 #A2743F #6EA23F

monochromatic

#1E1D4A #302E76 #423FA2 #615EC0 #8C8AD1

Accessibility & contrast

On white

8.52

#423FA2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#423FA2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423FA2

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423FA2	#FFFFFF	#000000	##FFFFFF
##423FA2	1.00	8.52	2.46	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A5

Deuteranopia (green-blind)

#0049A0

Tritanopia (blue-blind)

#00576A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #423fa2;
/* rgb */ color: rgb(66, 63, 162);
/* oklch */ color: oklch(43.1% 0.155 279.0);

Tailwind

colors: {
  custom: {
    50: '#8074be',
    500: '#423fa2',
    950: '#000000',
  },
}

SCSS

$custom: #423fa2;
$custom-light: #8074be;
$custom-dark: #000000;

JSON

{
  "hex": "#423fa2",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 162
  },
  "hsl": {
    "h": 241.818,
    "s": 44,
    "l": 44.118
  },
  "oklch": {
    "l": 0.43104,
    "c": 0.15528,
    "h": 279
  },
  "luminance": 0.07322
}

Semantic roles & 50–950 ramp

primary

#423FA2

secondary

#BABC81

accent

#D454D0

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #423FA2

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

Preview Lab → · Contrast checker → · Palette generator →