#423EA6#423EA6

#423EA6 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.3% C 0.162 H 278.9°. Best body text is #FFFFFF at 8.50:1 contrast (WCAG AA passes).

Color values

HEX	#423EA6
RGB	rgb(66, 62, 166)
HSL	hsl(242, 46%, 45%)
HSV	hsv(242, 63%, 65%)
CMYK	cmyk(60.2%, 62.7%, 0%, 34.9%)
CIE-LAB	lab(32.60, 33.05, -55.66)
CIE-LCH	lch(32.60, 64.73, 300.70°)
OKLab	oklab(43.26% 0.0251 -0.1601)
OKLCH	oklch(43.26% 0.162 278.9)
XYZ	xyz(10.8501, 7.3559, 36.9171)
Luminance	0.0736 (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

#423EA6 #A2A63E

analogous

#3E6EA6 #423EA6 #763EA6

triadic

#423EA6 #A6423E #3EA642

tetradic

#423EA6 #A63E6E #A2A63E #3EA676

square

#423EA6 #A63E6E #A2A63E #3EA676

split-complementary

#423EA6 #A6763E #6EA63E

monochromatic

#1F1D4D #302D79 #423EA6 #625EC3 #8E8BD4

Accessibility & contrast

On white

8.50

#423EA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#423EA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423EA6

8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423EA6	#FFFFFF	#000000	##FFFFFF
##423EA6	1.00	8.50	2.47	8.50
#FFFFFF	8.50	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A9

Deuteranopia (green-blind)

#0049A4

Tritanopia (blue-blind)

#00586C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #423ea6;
/* rgb */ color: rgb(66, 62, 166);
/* oklch */ color: oklch(43.3% 0.162 278.9);

Tailwind

colors: {
  custom: {
    50: '#8173c1',
    500: '#423ea6',
    950: '#000000',
  },
}

SCSS

$custom: #423ea6;
$custom-light: #8173c1;
$custom-dark: #000000;

JSON

{
  "hex": "#423ea6",
  "rgb": {
    "r": 66,
    "g": 62,
    "b": 166
  },
  "hsl": {
    "h": 242.308,
    "s": 45.614,
    "l": 44.706
  },
  "oklch": {
    "l": 0.4326,
    "c": 0.16204,
    "h": 278.9
  },
  "luminance": 0.07357
}

Semantic roles & 50–950 ramp

primary

#423EA6

secondary

#BCBE82

accent

#D553D0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #423EA6

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

Preview Lab → · Contrast checker → · Palette generator →