#423F6A#423F6A

#423F6A is a dark, moderate blue. Relative luminance 0.058; OKLCH L 39.1% C 0.072 H 285.8°. Best body text is #FFFFFF at 9.76:1 contrast (WCAG AA passes).

Color values

HEX	#423F6A
RGB	rgb(66, 63, 106)
HSL	hsl(244, 25%, 33%)
HSV	hsv(244, 41%, 42%)
CMYK	cmyk(37.7%, 40.6%, 0%, 58.4%)
CIE-LAB	lab(28.78, 12.75, -24.67)
CIE-LCH	lch(28.78, 27.77, 297.32°)
OKLab	oklab(39.1% 0.0195 -0.0692)
OKLCH	oklch(39.1% 0.072 285.8)
XYZ	xyz(6.6251, 5.7537, 14.3944)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423F6A #676A3F

analogous

#3F516A #423F6A #573F6A

triadic

#423F6A #6A423F #3F6A42

tetradic

#423F6A #6A3F51 #676A3F #3F6A57

square

#423F6A #6A3F51 #676A3F #3F6A57

split-complementary

#423F6A #6A573F #516A3F

monochromatic

#12111D #2A2844 #423F6A #5A5690 #7A76AE

Accessibility & contrast

On white

9.76

#423F6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#423F6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423F6A

9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423F6A	#FFFFFF	#000000	##FFFFFF
##423F6A	1.00	9.76	2.15	9.76
#FFFFFF	9.76	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#31456C

Deuteranopia (green-blind)

#304369

Tritanopia (blue-blind)

#37474F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #423f6a;
/* rgb */ color: rgb(66, 63, 106);
/* oklch */ color: oklch(39.1% 0.072 285.8);

Tailwind

colors: {
  custom: {
    50: '#787495',
    500: '#423f6a',
    950: '#000000',
  },
}

SCSS

$custom: #423f6a;
$custom-light: #787495;
$custom-dark: #000000;

JSON

{
  "hex": "#423f6a",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 106
  },
  "hsl": {
    "h": 244.186,
    "s": 25.444,
    "l": 33.137
  },
  "oklch": {
    "l": 0.39099,
    "c": 0.07187,
    "h": 285.8
  },
  "luminance": 0.05754
}

Semantic roles & 50–950 ramp

primary

#423F6A

secondary

#95996C

accent

#C266BB

background

#F7F7F9

surface

#EDEDF1

border

#C8C8CB

text

#09080D

muted

#7B7B7E

Preview Lab

Preview with #423F6A

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

Preview Lab → · Contrast checker → · Palette generator →