#042536#042536

#042536 is a dark, muted cyan. Relative luminance 0.016; OKLCH L 25.1% C 0.049 H 235.9°. Best body text is #FFFFFF at 15.87:1 contrast (WCAG AA passes).

Color values

HEX	#042536
RGB	rgb(4, 37, 54)
HSL	hsl(200, 86%, 11%)
HSV	hsv(200, 93%, 21%)
CMYK	cmyk(92.6%, 31.5%, 0%, 78.8%)
CIE-LAB	lab(13.32, -4.49, -14.39)
CIE-LCH	lch(13.32, 15.08, 252.67°)
OKLab	oklab(25.07% -0.0276 -0.0407)
OKLCH	oklch(25.07% 0.049 235.9)
XYZ	xyz(1.3772, 1.6151, 3.7285)
Luminance	0.0162 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042536 #361504

analogous

#04362E #042536 #040C36

triadic

#042536 #360425 #253604

tetradic

#042536 #2E0436 #361504 #0C3604

square

#042536 #2E0436 #361504 #0C3604

split-complementary

#042536 #36040C #362E04

monochromatic

#02141C #02141C #042536 #084C6F #0C73A8

Accessibility & contrast

On white

15.87

#042536 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#042536 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042536

15.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042536	#FFFFFF	#000000	##FFFFFF
##042536	1.00	15.87	1.32	15.87
#FFFFFF	15.87	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D2537

Deuteranopia (green-blind)

#162036

Tritanopia (blue-blind)

#00292B

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #042536;
/* rgb */ color: rgb(4, 37, 54);
/* oklch */ color: oklch(25.1% 0.049 235.9);

Tailwind

colors: {
  custom: {
    50: '#4d5f6d',
    500: '#042536',
    950: '#000000',
  },
}

SCSS

$custom: #042536;
$custom-light: #4d5f6d;
$custom-dark: #000000;

JSON

{
  "hex": "#042536",
  "rgb": {
    "r": 4,
    "g": 37,
    "b": 54
  },
  "hsl": {
    "h": 200.4,
    "s": 86.207,
    "l": 11.373
  },
  "oklch": {
    "l": 0.25067,
    "c": 0.04913,
    "h": 235.9
  },
  "luminance": 0.01615
}

Semantic roles & 50–950 ramp

primary

#042536

secondary

#783C1E

accent

#722BFC

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020407

muted

#78797A

Preview Lab

Preview with #042536

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

Preview Lab → · Contrast checker → · Palette generator →