#424558#424558

#424558 is a dark, muted blue. Relative luminance 0.061; OKLCH L 39.5% C 0.032 H 277.8°. Best body text is #FFFFFF at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#424558
RGB	rgb(66, 69, 88)
HSL	hsl(232, 14%, 30%)
HSV	hsv(232, 25%, 35%)
CMYK	cmyk(25%, 21.6%, 0%, 65.5%)
CIE-LAB	lab(29.71, 3.55, -11.69)
CIE-LCH	lch(29.71, 12.22, 286.89°)
OKLab	oklab(39.53% 0.0044 -0.032)
OKLCH	oklch(39.53% 0.032 277.8)
XYZ	xyz(6.1359, 6.1189, 10.0884)
Luminance	0.0612 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424558 #585542

analogous

#425058 #424558 #4A4258

triadic

#424558 #584245 #455842

tetradic

#424558 #584250 #585542 #42584A

square

#424558 #584250 #585542 #42584A

split-complementary

#424558 #584A42 #505842

monochromatic

#0E0E12 #282A35 #424558 #5C607B #7A7E9B

Accessibility & contrast

On white

9.44

#424558 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#424558 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424558

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424558	#FFFFFF	#000000	##FFFFFF
##424558	1.00	9.44	2.22	9.44
#FFFFFF	9.44	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#404759

Deuteranopia (green-blind)

#3F4558

Tritanopia (blue-blind)

#3D484B

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #424558;
/* rgb */ color: rgb(66, 69, 88);
/* oklch */ color: oklch(39.5% 0.032 277.8);

Tailwind

colors: {
  custom: {
    50: '#767887',
    500: '#424558',
    950: '#000000',
  },
}

SCSS

$custom: #424558;
$custom-light: #767887;
$custom-dark: #000000;

JSON

{
  "hex": "#424558",
  "rgb": {
    "r": 66,
    "g": 69,
    "b": 88
  },
  "hsl": {
    "h": 231.818,
    "s": 14.286,
    "l": 30.196
  },
  "oklch": {
    "l": 0.39534,
    "c": 0.03232,
    "h": 277.8
  },
  "luminance": 0.06119
}

Semantic roles & 50–950 ramp

primary

#424558

secondary

#87846F

accent

#AD71B7

background

#F7F7F8

surface

#EDEDEF

border

#C8C8CA

text

#08090B

muted

#7B7B7C

Preview Lab

Preview with #424558

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

Preview Lab → · Contrast checker → · Palette generator →