#424C5C#424C5C

#424C5C is a dark, muted blue. Relative luminance 0.071; OKLCH L 41.4% C 0.030 H 259.8°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#424C5C
RGB	rgb(66, 76, 92)
HSL	hsl(217, 16%, 31%)
HSV	hsv(217, 28%, 36%)
CMYK	cmyk(28.3%, 17.4%, 0%, 63.9%)
CIE-LAB	lab(32.03, 0.15, -10.72)
CIE-LCH	lch(32.03, 10.72, 270.79°)
OKLab	oklab(41.4% -0.0053 -0.0293)
OKLCH	oklch(41.4% 0.03 259.8)
XYZ	xyz(6.7624, 7.0996, 11.1372)
Luminance	0.0710 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424C5C #5C5242

analogous

#42595C #424C5C #45425C

triadic

#424C5C #5C424C #4C5C42

tetradic

#424C5C #5C4259 #5C5242 #425C45

square

#424C5C #5C4259 #5C5242 #425C45

split-complementary

#424C5C #5C4542 #595C42

monochromatic

#0F1115 #282F38 #424C5C #5C6980 #79889F

Accessibility & contrast

On white

8.68

#424C5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#424C5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424C5C

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424C5C	#FFFFFF	#000000	##FFFFFF
##424C5C	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474D5D

Deuteranopia (green-blind)

#444A5C

Tritanopia (blue-blind)

#3B4F51

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #424c5c;
/* rgb */ color: rgb(66, 76, 92);
/* oklch */ color: oklch(41.4% 0.030 259.8);

Tailwind

colors: {
  custom: {
    50: '#777e8a',
    500: '#424c5c',
    950: '#000000',
  },
}

SCSS

$custom: #424c5c;
$custom-light: #777e8a;
$custom-dark: #000000;

JSON

{
  "hex": "#424c5c",
  "rgb": {
    "r": 66,
    "g": 76,
    "b": 92
  },
  "hsl": {
    "h": 216.923,
    "s": 16.456,
    "l": 30.98
  },
  "oklch": {
    "l": 0.41403,
    "c": 0.02981,
    "h": 259.8
  },
  "luminance": 0.071
}

Semantic roles & 50–950 ramp

primary

#424C5C

secondary

#8B806F

accent

#9D6FB9

background

#F7F7F8

surface

#EDEEF0

border

#C8C9CB

text

#08090B

muted

#7B7B7C

Preview Lab

Preview with #424C5C

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

Preview Lab → · Contrast checker → · Palette generator →