#423E8A#423E8A

#423E8A is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.0% C 0.123 H 281.9°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#423E8A
RGB	rgb(66, 62, 138)
HSL	hsl(243, 38%, 39%)
HSV	hsv(243, 55%, 54%)
CMYK	cmyk(52.2%, 55.1%, 0%, 45.9%)
CIE-LAB	lab(30.49, 23.69, -42.03)
CIE-LCH	lch(30.49, 48.25, 299.40°)
OKLab	oklab(41.03% 0.0253 -0.12)
OKLCH	oklch(41.03% 0.123 281.9)
XYZ	xyz(8.5554, 6.4380, 24.8317)
Luminance	0.0644 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423E8A #868A3E

analogous

#3E608A #423E8A #683E8A

triadic

#423E8A #8A423E #3E8A42

tetradic

#423E8A #8A3E60 #868A3E #3E8A68

square

#423E8A #8A3E60 #868A3E #3E8A68

split-complementary

#423E8A #8A683E #608A3E

monochromatic

#1A1836 #2E2B60 #423E8A #5853B2 #817EC5

Accessibility & contrast

On white

9.18

#423E8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#423E8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423E8A

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423E8A	#FFFFFF	#000000	##FFFFFF
##423E8A	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#144A8D

Deuteranopia (green-blind)

#0C4588

Tritanopia (blue-blind)

#264F5E

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #423e8a;
/* rgb */ color: rgb(66, 62, 138);
/* oklch */ color: oklch(41.0% 0.123 281.9);

Tailwind

colors: {
  custom: {
    50: '#7c73ad',
    500: '#423e8a',
    950: '#000000',
  },
}

SCSS

$custom: #423e8a;
$custom-light: #7c73ad;
$custom-dark: #000000;

JSON

{
  "hex": "#423e8a",
  "rgb": {
    "r": 66,
    "g": 62,
    "b": 138
  },
  "hsl": {
    "h": 243.158,
    "s": 38,
    "l": 39.216
  },
  "oklch": {
    "l": 0.41031,
    "c": 0.12265,
    "h": 281.9
  },
  "luminance": 0.06438
}

Semantic roles & 50–950 ramp

primary

#423E8A

secondary

#ACAF75

accent

#CE5AC8

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#0A0810

muted

#7C7B7F

Preview Lab

Preview with #423E8A

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

Preview Lab → · Contrast checker → · Palette generator →