#04232B#04232B

#04232B is a very dark, muted cyan. Relative luminance 0.014; OKLCH L 23.8% C 0.039 H 218.4°. Best body text is #FFFFFF at 16.40:1 contrast (WCAG AA passes).

Color values

HEX	#04232B
RGB	rgb(4, 35, 43)
HSL	hsl(192, 83%, 9%)
HSV	hsv(192, 91%, 17%)
CMYK	cmyk(90.7%, 18.6%, 0%, 83.1%)
CIE-LAB	lab(11.97, -7.92, -8.60)
CIE-LCH	lch(11.97, 11.69, 227.37°)
OKLab	oklab(23.8% -0.0303 -0.024)
OKLCH	oklch(23.8% 0.039 218.4)
XYZ	xyz(1.0870, 1.4022, 2.4984)
Luminance	0.0140 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04232B #2B0C04

analogous

#042B20 #04232B #04102B

triadic

#04232B #2B0423 #232B04

tetradic

#04232B #20042B #2B0C04 #102B04

square

#04232B #20042B #2B0C04 #102B04

split-complementary

#04232B #2B0410 #2B2004

monochromatic

#03171C #03171C #04232B #095163 #0E7E9B

Accessibility & contrast

On white

16.40

#04232B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#04232B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04232B

16.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04232B	#FFFFFF	#000000	##FFFFFF
##04232B	1.00	16.40	1.28	16.40
#FFFFFF	16.40	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E222B

Deuteranopia (green-blind)

#181E2B

Tritanopia (blue-blind)

#002626

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #04232b;
/* rgb */ color: rgb(4, 35, 43);
/* oklch */ color: oklch(23.8% 0.039 218.4);

Tailwind

colors: {
  custom: {
    50: '#4b5d64',
    500: '#04232b',
    950: '#000000',
  },
}

SCSS

$custom: #04232b;
$custom-light: #4b5d64;
$custom-dark: #000000;

JSON

{
  "hex": "#04232b",
  "rgb": {
    "r": 4,
    "g": 35,
    "b": 43
  },
  "hsl": {
    "h": 192.308,
    "s": 82.979,
    "l": 9.216
  },
  "oklch": {
    "l": 0.23795,
    "c": 0.03868,
    "h": 218.4
  },
  "luminance": 0.01402
}

Semantic roles & 50–950 ramp

primary

#04232B

secondary

#6E2E1D

accent

#582EF9

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#010405

muted

#777979

Preview Lab

Preview with #04232B

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

Preview Lab → · Contrast checker → · Palette generator →