#042333#042333

#042333 is a very dark, muted cyan. Relative luminance 0.015; OKLCH L 24.3% C 0.047 H 235.6°. Best body text is #FFFFFF at 16.24:1 contrast (WCAG AA passes).

Color values

HEX	#042333
RGB	rgb(4, 35, 51)
HSL	hsl(200, 85%, 11%)
HSV	hsv(200, 92%, 20%)
CMYK	cmyk(92.2%, 31.4%, 0%, 80%)
CIE-LAB	lab(12.39, -4.42, -13.70)
CIE-LCH	lch(12.39, 14.40, 252.12°)
OKLab	oklab(24.27% -0.0265 -0.0387)
OKLCH	oklch(24.27% 0.047 235.6)
XYZ	xyz(1.2484, 1.4667, 3.3486)
Luminance	0.0147 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042333 #331404

analogous

#04332B #042333 #040B33

triadic

#042333 #330423 #233304

tetradic

#042333 #2B0433 #331404 #0B3304

square

#042333 #2B0433 #331404 #0B3304

split-complementary

#042333 #33040B #332B04

monochromatic

#02131C #02131C #042333 #084A6C #0D71A4

Accessibility & contrast

On white

16.24

#042333 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#042333 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042333

16.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042333	#FFFFFF	#000000	##FFFFFF
##042333	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)

#1B2334

Deuteranopia (green-blind)

#151E33

Tritanopia (blue-blind)

#002728

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #042333;
/* rgb */ color: rgb(4, 35, 51);
/* oklch */ color: oklch(24.3% 0.047 235.6);

Tailwind

colors: {
  custom: {
    50: '#4c5d6a',
    500: '#042333',
    950: '#000000',
  },
}

SCSS

$custom: #042333;
$custom-light: #4c5d6a;
$custom-dark: #000000;

JSON

{
  "hex": "#042333",
  "rgb": {
    "r": 4,
    "g": 35,
    "b": 51
  },
  "hsl": {
    "h": 200.426,
    "s": 85.455,
    "l": 10.784
  },
  "oklch": {
    "l": 0.24273,
    "c": 0.04693,
    "h": 235.6
  },
  "luminance": 0.01467
}

Semantic roles & 50–950 ramp

primary

#042333

secondary

#753B1D

accent

#732CFC

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#010406

muted

#77797A

Preview Lab

Preview with #042333

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

Preview Lab → · Contrast checker → · Palette generator →