#042231#042231

#042231 is a very dark, muted cyan. Relative luminance 0.014; OKLCH L 23.8% C 0.045 H 234.5°. Best body text is #FFFFFF at 16.43:1 contrast (WCAG AA passes).

Color values

HEX	#042231
RGB	rgb(4, 34, 49)
HSL	hsl(200, 85%, 10%)
HSV	hsv(200, 92%, 19%)
CMYK	cmyk(91.8%, 30.6%, 0%, 80.8%)
CIE-LAB	lab(11.90, -4.61, -13.04)
CIE-LCH	lch(11.90, 13.83, 250.54°)
OKLab	oklab(23.84% -0.0262 -0.0368)
OKLCH	oklch(23.84% 0.045 234.5)
XYZ	xyz(1.1763, 1.3915, 3.1117)
Luminance	0.0139 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042231 #311304

analogous

#043129 #042231 #040B31

triadic

#042231 #310422 #223104

tetradic

#042231 #290431 #311304 #0B3104

square

#042231 #290431 #311304 #0B3104

split-complementary

#042231 #31040B #312904

monochromatic

#02141C #02141C #042231 #09496A #0D71A2

Accessibility & contrast

On white

16.43

#042231 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#042231 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042231

16.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042231	#FFFFFF	#000000	##FFFFFF
##042231	1.00	16.43	1.28	16.43
#FFFFFF	16.43	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B2232

Deuteranopia (green-blind)

#141D31

Tritanopia (blue-blind)

#002627

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #042231;
/* rgb */ color: rgb(4, 34, 49);
/* oklch */ color: oklch(23.8% 0.045 234.5);

Tailwind

colors: {
  custom: {
    50: '#4c5c69',
    500: '#042231',
    950: '#000000',
  },
}

SCSS

$custom: #042231;
$custom-light: #4c5c69;
$custom-dark: #000000;

JSON

{
  "hex": "#042231",
  "rgb": {
    "r": 4,
    "g": 34,
    "b": 49
  },
  "hsl": {
    "h": 200,
    "s": 84.906,
    "l": 10.392
  },
  "oklch": {
    "l": 0.23842,
    "c": 0.04519,
    "h": 234.5
  },
  "luminance": 0.01392
}

Semantic roles & 50–950 ramp

primary

#042231

secondary

#733A1D

accent

#712DFB

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#010406

muted

#77797A

Preview Lab

Preview with #042231

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

Preview Lab → · Contrast checker → · Palette generator →