#423AA6#423AA6

#423AA6 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.6% C 0.167 H 279.9°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#423AA6
RGB	rgb(66, 58, 166)
HSL	hsl(244, 48%, 44%)
HSV	hsv(244, 65%, 65%)
CMYK	cmyk(60.2%, 65.1%, 0%, 34.9%)
CIE-LAB	lab(31.66, 35.54, -57.20)
CIE-LCH	lch(31.66, 67.34, 301.85°)
OKLab	oklab(42.57% 0.0287 -0.1646)
OKLCH	oklch(42.57% 0.167 279.9)
XYZ	xyz(10.6406, 6.9368, 36.8472)
Luminance	0.0694 (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

#423AA6 #9EA63A

analogous

#3A68A6 #423AA6 #783AA6

triadic

#423AA6 #A6423A #3AA642

tetradic

#423AA6 #A63A68 #9EA63A #3AA678

square

#423AA6 #A63A68 #9EA63A #3AA678

split-complementary

#423AA6 #A6783A #68A63A

monochromatic

#1E1A4B #302A79 #423AA6 #6058C5 #8C86D5

Accessibility & contrast

On white

8.80

#423AA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#423AA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423AA6

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423AA6	#FFFFFF	#000000	##FFFFFF
##423AA6	1.00	8.80	2.39	8.80
#FFFFFF	8.80	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA9

Deuteranopia (green-blind)

#0046A4

Tritanopia (blue-blind)

#00556A

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #423aa6;
/* rgb */ color: rgb(66, 58, 166);
/* oklch */ color: oklch(42.6% 0.167 279.9);

Tailwind

colors: {
  custom: {
    50: '#8171c1',
    500: '#423aa6',
    950: '#000000',
  },
}

SCSS

$custom: #423aa6;
$custom-light: #8171c1;
$custom-dark: #000000;

JSON

{
  "hex": "#423aa6",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 166
  },
  "hsl": {
    "h": 244.444,
    "s": 48.214,
    "l": 43.922
  },
  "oklch": {
    "l": 0.42573,
    "c": 0.1671,
    "h": 279.9
  },
  "luminance": 0.06938
}

Semantic roles & 50–950 ramp

primary

#423AA6

secondary

#BABF7D

accent

#D850CE

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #423AA6

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

Preview Lab → · Contrast checker → · Palette generator →