#042237#042237

#042237 is a very dark, muted cyan. Relative luminance 0.014; OKLCH L 24.2% C 0.053 H 243.5°. Best body text is #FFFFFF at 16.29:1 contrast (WCAG AA passes).

Color values

HEX	#042237
RGB	rgb(4, 34, 55)
HSL	hsl(205, 86%, 12%)
HSV	hsv(205, 93%, 22%)
CMYK	cmyk(92.7%, 38.2%, 0%, 78.4%)
CIE-LAB	lab(12.26, -1.88, -16.77)
CIE-LCH	lch(12.26, 16.88, 263.62°)
OKLab	oklab(24.24% -0.0238 -0.0477)
OKLCH	oklch(24.24% 0.053 243.5)
XYZ	xyz(1.3114, 1.4455, 3.8236)
Luminance	0.0145 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042237 #371904

analogous

#043733 #042237 #040937

triadic

#042237 #370422 #223704

tetradic

#042237 #330437 #371904 #093704

square

#042237 #330437 #371904 #093704

split-complementary

#042237 #370409 #373304

monochromatic

#02121D #02121D #042237 #084570 #0C69A9

Accessibility & contrast

On white

16.29

#042237 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#042237 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042237

16.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042237	#FFFFFF	#000000	##FFFFFF
##042237	1.00	16.29	1.29	16.29
#FFFFFF	16.29	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#182338

Deuteranopia (green-blind)

#111E37

Tritanopia (blue-blind)

#00272A

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #042237;
/* rgb */ color: rgb(4, 34, 55);
/* oklch */ color: oklch(24.2% 0.053 243.5);

Tailwind

colors: {
  custom: {
    50: '#4d5c6e',
    500: '#042237',
    950: '#000000',
  },
}

SCSS

$custom: #042237;
$custom-light: #4d5c6e;
$custom-dark: #000000;

JSON

{
  "hex": "#042237",
  "rgb": {
    "r": 4,
    "g": 34,
    "b": 55
  },
  "hsl": {
    "h": 204.706,
    "s": 86.441,
    "l": 11.569
  },
  "oklch": {
    "l": 0.24242,
    "c": 0.05327,
    "h": 243.5
  },
  "luminance": 0.01446
}

Semantic roles & 50–950 ramp

primary

#042237

secondary

#79431E

accent

#812BFD

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020407

muted

#78797A

Preview Lab

Preview with #042237

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

Preview Lab → · Contrast checker → · Palette generator →