#423E9F#423E9F

#423E9F is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.7% C 0.152 H 279.6°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#423E9F
RGB	rgb(66, 62, 159)
HSL	hsl(242, 44%, 43%)
HSV	hsv(242, 61%, 62%)
CMYK	cmyk(58.5%, 61%, 0%, 37.6%)
CIE-LAB	lab(32.05, 30.70, -52.35)
CIE-LCH	lch(32.05, 60.69, 300.39°)
OKLab	oklab(42.68% 0.0254 -0.1504)
OKLCH	oklch(42.68% 0.152 279.6)
XYZ	xyz(10.2254, 7.1060, 33.6269)
Luminance	0.0711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.34

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423E9F #9B9F3E

analogous

#3E6A9F #423E9F #723E9F

triadic

#423E9F #9F423E #3E9F42

tetradic

#423E9F #9F3E6A #9B9F3E #3E9F72

square

#423E9F #9F3E6A #9B9F3E #3E9F72

split-complementary

#423E9F #9F723E #6A9F3E

monochromatic

#1D1C47 #302D73 #423E9F #5F5BBF #8A87D0

Accessibility & contrast

On white

8.67

#423E9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#423E9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423E9F

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423E9F	#FFFFFF	#000000	##FFFFFF
##423E9F	1.00	8.67	2.42	8.67
#FFFFFF	8.67	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA2

Deuteranopia (green-blind)

#00489D

Tritanopia (blue-blind)

#095568

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #423e9f;
/* rgb */ color: rgb(66, 62, 159);
/* oklch */ color: oklch(42.7% 0.152 279.6);

Tailwind

colors: {
  custom: {
    50: '#8073bc',
    500: '#423e9f',
    950: '#000000',
  },
}

SCSS

$custom: #423e9f;
$custom-light: #8073bc;
$custom-dark: #000000;

JSON

{
  "hex": "#423e9f",
  "rgb": {
    "r": 66,
    "g": 62,
    "b": 159
  },
  "hsl": {
    "h": 242.474,
    "s": 43.891,
    "l": 43.333
  },
  "oklch": {
    "l": 0.42677,
    "c": 0.15248,
    "h": 279.6
  },
  "luminance": 0.07107
}

Semantic roles & 50–950 ramp

primary

#423E9F

secondary

#B8BB7E

accent

#D454CE

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #423E9F

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

Preview Lab → · Contrast checker → · Palette generator →