#423EA0#423EA0

#423EA0 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.8% C 0.154 H 279.5°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#423EA0
RGB	rgb(66, 62, 160)
HSL	hsl(242, 44%, 44%)
HSV	hsv(242, 61%, 63%)
CMYK	cmyk(58.8%, 61.2%, 0%, 37.3%)
CIE-LAB	lab(32.13, 31.04, -52.83)
CIE-LCH	lch(32.13, 61.27, 300.44°)
OKLab	oklab(42.76% 0.0254 -0.1517)
OKLCH	oklch(42.76% 0.154 279.5)
XYZ	xyz(10.3125, 7.1409, 34.0858)
Luminance	0.0714 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.19

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423EA0 #9CA03E

analogous

#3E6BA0 #423EA0 #733EA0

triadic

#423EA0 #A0423E #3EA042

tetradic

#423EA0 #A03E6B #9CA03E #3EA073

square

#423EA0 #A03E6B #9CA03E #3EA073

split-complementary

#423EA0 #A0733E #6BA03E

monochromatic

#1E1C48 #302D74 #423EA0 #605CC0 #8B88D1

Accessibility & contrast

On white

8.65

#423EA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#423EA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423EA0

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423EA0	#FFFFFF	#000000	##FFFFFF
##423EA0	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA3

Deuteranopia (green-blind)

#00489E

Tritanopia (blue-blind)

#065669

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #423ea0;
/* rgb */ color: rgb(66, 62, 160);
/* oklch */ color: oklch(42.8% 0.154 279.5);

Tailwind

colors: {
  custom: {
    50: '#8073bd',
    500: '#423ea0',
    950: '#000000',
  },
}

SCSS

$custom: #423ea0;
$custom-light: #8073bd;
$custom-dark: #000000;

JSON

{
  "hex": "#423ea0",
  "rgb": {
    "r": 66,
    "g": 62,
    "b": 160
  },
  "hsl": {
    "h": 242.449,
    "s": 44.144,
    "l": 43.529
  },
  "oklch": {
    "l": 0.42759,
    "c": 0.15385,
    "h": 279.5
  },
  "luminance": 0.07142
}

Semantic roles & 50–950 ramp

primary

#423EA0

secondary

#B9BB7F

accent

#D454CF

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #423EA0

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

Preview Lab → · Contrast checker → · Palette generator →