#042239#042239

#042239 is a very dark, muted cyan. Relative luminance 0.015; OKLCH L 24.4% C 0.056 H 245.7°. Best body text is #FFFFFF at 16.24:1 contrast (WCAG AA passes).

Color values

HEX	#042239
RGB	rgb(4, 34, 57)
HSL	hsl(206, 87%, 12%)
HSV	hsv(206, 93%, 22%)
CMYK	cmyk(93%, 40.4%, 0%, 77.6%)
CIE-LAB	lab(12.38, -0.95, -17.99)
CIE-LCH	lch(12.38, 18.02, 266.97°)
OKLab	oklab(24.38% -0.0231 -0.0512)
OKLCH	oklch(24.38% 0.056 245.7)
XYZ	xyz(1.3603, 1.4651, 4.0812)
Luminance	0.0146 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042239 #391B04

analogous

#043936 #042239 #040739

triadic

#042239 #390422 #223904

tetradic

#042239 #360439 #391B04 #073904

square

#042239 #360439 #391B04 #073904

split-complementary

#042239 #390407 #393604

monochromatic

#02111D #02111D #042239 #084472 #0C66AB

Accessibility & contrast

On white

16.24

#042239 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#042239 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042239

16.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042239	#FFFFFF	#000000	##FFFFFF
##042239	1.00	16.24	1.29	16.24
#FFFFFF	16.24	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17233A

Deuteranopia (green-blind)

#0F1E39

Tritanopia (blue-blind)

#00282A

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #042239;
/* rgb */ color: rgb(4, 34, 57);
/* oklch */ color: oklch(24.4% 0.056 245.7);

Tailwind

colors: {
  custom: {
    50: '#4e5c6f',
    500: '#042239',
    950: '#000000',
  },
}

SCSS

$custom: #042239;
$custom-light: #4e5c6f;
$custom-dark: #000000;

JSON

{
  "hex": "#042239",
  "rgb": {
    "r": 4,
    "g": 34,
    "b": 57
  },
  "hsl": {
    "h": 206.038,
    "s": 86.885,
    "l": 11.961
  },
  "oklch": {
    "l": 0.24384,
    "c": 0.05619,
    "h": 245.7
  },
  "luminance": 0.01465
}

Semantic roles & 50–950 ramp

primary

#042239

secondary

#7B461E

accent

#862BFD

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #042239

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

Preview Lab → · Contrast checker → · Palette generator →