#042E39#042E39

#042E39 is a dark, muted cyan. Relative luminance 0.023; OKLCH L 28.0% C 0.048 H 220.1°. Best body text is #FFFFFF at 14.43:1 contrast (WCAG AA passes).

Color values

HEX	#042E39
RGB	rgb(4, 46, 57)
HSL	hsl(192, 87%, 12%)
HSV	hsv(192, 93%, 22%)
CMYK	cmyk(93%, 19.3%, 0%, 77.6%)
CIE-LAB	lab(16.87, -9.26, -10.99)
CIE-LCH	lch(16.87, 14.38, 229.88°)
OKLab	oklab(27.96% -0.0366 -0.0308)
OKLCH	oklch(27.96% 0.048 220.1)
XYZ	xyz(1.7653, 2.2750, 4.2162)
Luminance	0.0227 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042E39 #390F04

analogous

#04392A #042E39 #041439

triadic

#042E39 #39042E #2E3904

tetradic

#042E39 #2A0439 #390F04 #143904

square

#042E39 #2A0439 #390F04 #143904

split-complementary

#042E39 #390414 #392A04

monochromatic

#02171D #02171D #042E39 #085C72 #0C8AAB

Accessibility & contrast

On white

14.43

#042E39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#042E39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042E39

14.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042E39	#FFFFFF	#000000	##FFFFFF
##042E39	1.00	14.43	1.46	14.43
#FFFFFF	14.43	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#272C3A

Deuteranopia (green-blind)

#202739

Tritanopia (blue-blind)

#003232

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #042e39;
/* rgb */ color: rgb(4, 46, 57);
/* oklch */ color: oklch(28.0% 0.048 220.1);

Tailwind

colors: {
  custom: {
    50: '#4f666f',
    500: '#042e39',
    950: '#000000',
  },
}

SCSS

$custom: #042e39;
$custom-light: #4f666f;
$custom-dark: #000000;

JSON

{
  "hex": "#042e39",
  "rgb": {
    "r": 4,
    "g": 46,
    "b": 57
  },
  "hsl": {
    "h": 192.453,
    "s": 86.885,
    "l": 11.961
  },
  "oklch": {
    "l": 0.27958,
    "c": 0.04784,
    "h": 220.1
  },
  "luminance": 0.02275
}

Semantic roles & 50–950 ramp

primary

#042E39

secondary

#7B311E

accent

#562BFD

background

#F4F6F6

surface

#E7EBEC

border

#C3C6C7

text

#020607

muted

#787A7A

Preview Lab

Preview with #042E39

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

Preview Lab → · Contrast checker → · Palette generator →