#423A8A#423A8A

#423A8A is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.3% C 0.128 H 283.5°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#423A8A
RGB	rgb(66, 58, 138)
HSL	hsl(246, 41%, 38%)
HSV	hsv(246, 58%, 54%)
CMYK	cmyk(52.2%, 58%, 0%, 45.9%)
CIE-LAB	lab(29.46, 26.29, -43.70)
CIE-LCH	lch(29.46, 51.00, 301.03°)
OKLab	oklab(40.26% 0.0301 -0.1249)
OKLCH	oklch(40.26% 0.128 283.5)
XYZ	xyz(8.3459, 6.0189, 24.7618)
Luminance	0.0602 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423A8A #828A3A

analogous

#3A5A8A #423A8A #6A3A8A

triadic

#423A8A #8A423A #3A8A42

tetradic

#423A8A #8A3A5A #828A3A #3A8A6A

square

#423A8A #8A3A5A #828A3A #3A8A6A

split-complementary

#423A8A #8A6A3A #5A8A3A

monochromatic

#191634 #2D285F #423A8A #574DB4 #8078C6

Accessibility & contrast

On white

9.53

#423A8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#423A8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423A8A

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423A8A	#FFFFFF	#000000	##FFFFFF
##423A8A	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03488D

Deuteranopia (green-blind)

#004388

Tritanopia (blue-blind)

#264C5C

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #423a8a;
/* rgb */ color: rgb(66, 58, 138);
/* oklch */ color: oklch(40.3% 0.128 283.5);

Tailwind

colors: {
  custom: {
    50: '#7c70ad',
    500: '#423a8a',
    950: '#000000',
  },
}

SCSS

$custom: #423a8a;
$custom-light: #7c70ad;
$custom-dark: #000000;

JSON

{
  "hex": "#423a8a",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 138
  },
  "hsl": {
    "h": 246,
    "s": 40.816,
    "l": 38.431
  },
  "oklch": {
    "l": 0.40264,
    "c": 0.12849,
    "h": 283.5
  },
  "luminance": 0.06019
}

Semantic roles & 50–950 ramp

primary

#423A8A

secondary

#A9B070

accent

#D157C5

background

#F7F6FA

surface

#EEECF4

border

#C9C7CE

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #423A8A

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

Preview Lab → · Contrast checker → · Palette generator →