#423E90#423E90

#423E90 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.5% C 0.131 H 281.2°. Best body text is #FFFFFF at 9.04:1 contrast (WCAG AA passes).

Color values

HEX	#423E90
RGB	rgb(66, 62, 144)
HSL	hsl(243, 40%, 40%)
HSV	hsv(243, 57%, 56%)
CMYK	cmyk(54.2%, 56.9%, 0%, 43.5%)
CIE-LAB	lab(30.92, 25.68, -45.04)
CIE-LCH	lch(30.92, 51.85, 299.69°)
OKLab	oklab(41.48% 0.0255 -0.1289)
OKLCH	oklch(41.48% 0.131 281.2)
XYZ	xyz(9.0019, 6.6166, 27.1829)
Luminance	0.0662 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423E90 #8C903E

analogous

#3E6390 #423E90 #6B3E90

triadic

#423E90 #90423E #3E9042

tetradic

#423E90 #903E63 #8C903E #3E906B

square

#423E90 #903E63 #8C903E #3E906B

split-complementary

#423E90 #906B3E #63903E

monochromatic

#1B193A #2E2C65 #423E90 #5A55B6 #8480C8

Accessibility & contrast

On white

9.04

#423E90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#423E90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423E90

9.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423E90	#FFFFFF	#000000	##FFFFFF
##423E90	1.00	9.04	2.32	9.04
#FFFFFF	9.04	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#064C93

Deuteranopia (green-blind)

#00468E

Tritanopia (blue-blind)

#215161

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #423e90;
/* rgb */ color: rgb(66, 62, 144);
/* oklch */ color: oklch(41.5% 0.131 281.2);

Tailwind

colors: {
  custom: {
    50: '#7d73b1',
    500: '#423e90',
    950: '#000000',
  },
}

SCSS

$custom: #423e90;
$custom-light: #7d73b1;
$custom-dark: #000000;

JSON

{
  "hex": "#423e90",
  "rgb": {
    "r": 66,
    "g": 62,
    "b": 144
  },
  "hsl": {
    "h": 242.927,
    "s": 39.806,
    "l": 40.392
  },
  "oklch": {
    "l": 0.41484,
    "c": 0.13136,
    "h": 281.2
  },
  "luminance": 0.06617
}

Semantic roles & 50–950 ramp

primary

#423E90

secondary

#B0B277

accent

#D058CA

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #423E90

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

Preview Lab → · Contrast checker → · Palette generator →