#423EA7#423EA7

#423EA7 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.3% C 0.163 H 278.8°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#423EA7
RGB	rgb(66, 62, 167)
HSL	hsl(242, 46%, 45%)
HSV	hsv(242, 63%, 65%)
CMYK	cmyk(60.5%, 62.9%, 0%, 34.5%)
CIE-LAB	lab(32.68, 33.39, -56.13)
CIE-LCH	lch(32.68, 65.31, 300.74°)
OKLab	oklab(43.35% 0.025 -0.1615)
OKLCH	oklch(43.35% 0.163 278.8)
XYZ	xyz(10.9422, 7.3927, 37.4020)
Luminance	0.0739 (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

#423EA7 #A3A73E

analogous

#3E6EA7 #423EA7 #773EA7

triadic

#423EA7 #A7423E #3EA742

tetradic

#423EA7 #A73E6E #A3A73E #3EA777

square

#423EA7 #A73E6E #A3A73E #3EA777

split-complementary

#423EA7 #A7773E #6EA73E

monochromatic

#1F1D4E #302D7A #423EA7 #635FC3 #8E8BD4

Accessibility & contrast

On white

8.47

#423EA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#423EA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423EA7

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423EA7	#FFFFFF	#000000	##FFFFFF
##423EA7	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AA

Deuteranopia (green-blind)

#0049A5

Tritanopia (blue-blind)

#00586C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #423ea7;
/* rgb */ color: rgb(66, 62, 167);
/* oklch */ color: oklch(43.3% 0.163 278.8);

Tailwind

colors: {
  custom: {
    50: '#8173c2',
    500: '#423ea7',
    950: '#000000',
  },
}

SCSS

$custom: #423ea7;
$custom-light: #8173c2;
$custom-dark: #000000;

JSON

{
  "hex": "#423ea7",
  "rgb": {
    "r": 66,
    "g": 62,
    "b": 167
  },
  "hsl": {
    "h": 242.286,
    "s": 45.852,
    "l": 44.902
  },
  "oklch": {
    "l": 0.43345,
    "c": 0.16338,
    "h": 278.8
  },
  "luminance": 0.07394
}

Semantic roles & 50–950 ramp

primary

#423EA7

secondary

#BCBF82

accent

#D652D1

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #423EA7

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

Preview Lab → · Contrast checker → · Palette generator →