#042528#042528

#042528 is a very dark, muted teal. Relative luminance 0.015; OKLCH L 24.3% C 0.038 H 203.7°. Best body text is #FFFFFF at 16.15:1 contrast (WCAG AA passes).

Color values

HEX	#042528
RGB	rgb(4, 37, 40)
HSL	hsl(185, 82%, 9%)
HSV	hsv(185, 90%, 16%)
CMYK	cmyk(90%, 7.5%, 0%, 84.3%)
CIE-LAB	lab(12.62, -10.46, -5.45)
CIE-LCH	lch(12.62, 11.79, 207.53°)
OKLab	oklab(24.27% -0.0344 -0.0151)
OKLCH	oklch(24.27% 0.038 203.7)
XYZ	xyz(1.0945, 1.5020, 2.2393)
Luminance	0.0150 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042528 #280704

analogous

#042819 #042528 #041328

triadic

#042528 #280425 #252804

tetradic

#042528 #190428 #280704 #132804

square

#042528 #190428 #280704 #132804

split-complementary

#042528 #280413 #281904

monochromatic

#031A1C #031A1C #042528 #0A5860 #0F8C97

Accessibility & contrast

On white

16.15

#042528 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#042528 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042528

16.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042528	#FFFFFF	#000000	##FFFFFF
##042528	1.00	16.15	1.30	16.15
#FFFFFF	16.15	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#212328

Deuteranopia (green-blind)

#1C1F28

Tritanopia (blue-blind)

#002726

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #042528;
/* rgb */ color: rgb(4, 37, 40);
/* oklch */ color: oklch(24.3% 0.038 203.7);

Tailwind

colors: {
  custom: {
    50: '#4a5f61',
    500: '#042528',
    950: '#000000',
  },
}

SCSS

$custom: #042528;
$custom-light: #4a5f61;
$custom-dark: #000000;

JSON

{
  "hex": "#042528",
  "rgb": {
    "r": 4,
    "g": 37,
    "b": 40
  },
  "hsl": {
    "h": 185,
    "s": 81.818,
    "l": 8.627
  },
  "oklch": {
    "l": 0.24273,
    "c": 0.03761,
    "h": 203.7
  },
  "luminance": 0.01502
}

Semantic roles & 50–950 ramp

primary

#042528

secondary

#6B231D

accent

#4030F8

background

#F4F5F5

surface

#E7E9E9

border

#C3C5C5

text

#010405

muted

#777979

Preview Lab

Preview with #042528

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

Preview Lab → · Contrast checker → · Palette generator →