#04282B#04282B

#04282B is a dark, muted teal. Relative luminance 0.017; OKLCH L 25.4% C 0.040 H 203.1°. Best body text is #FFFFFF at 15.63:1 contrast (WCAG AA passes).

Color values

HEX	#04282B
RGB	rgb(4, 40, 43)
HSL	hsl(185, 83%, 9%)
HSV	hsv(185, 91%, 17%)
CMYK	cmyk(90.7%, 7%, 0%, 83.1%)
CIE-LAB	lab(13.93, -11.15, -5.63)
CIE-LCH	lch(13.93, 12.49, 206.76°)
OKLab	oklab(25.37% -0.0366 -0.0156)
OKLCH	oklch(25.37% 0.04 203.1)
XYZ	xyz(1.2447, 1.7177, 2.5510)
Luminance	0.0172 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04282B #2B0704

analogous

#042B1B #04282B #04152B

triadic

#04282B #2B0428 #282B04

tetradic

#04282B #1B042B #2B0704 #152B04

square

#04282B #1B042B #2B0704 #152B04

split-complementary

#04282B #2B0415 #2B1B04

monochromatic

#031A1C #031A1C #04282B #095C63 #0E909B

Accessibility & contrast

On white

15.63

#04282B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#04282B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04282B

15.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04282B	#FFFFFF	#000000	##FFFFFF
##04282B	1.00	15.63	1.34	15.63
#FFFFFF	15.63	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24262B

Deuteranopia (green-blind)

#1E222B

Tritanopia (blue-blind)

#002A29

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #04282b;
/* rgb */ color: rgb(4, 40, 43);
/* oklch */ color: oklch(25.4% 0.040 203.1);

Tailwind

colors: {
  custom: {
    50: '#4b6264',
    500: '#04282b',
    950: '#000000',
  },
}

SCSS

$custom: #04282b;
$custom-light: #4b6264;
$custom-dark: #000000;

JSON

{
  "hex": "#04282b",
  "rgb": {
    "r": 4,
    "g": 40,
    "b": 43
  },
  "hsl": {
    "h": 184.615,
    "s": 82.979,
    "l": 9.216
  },
  "oklch": {
    "l": 0.25375,
    "c": 0.03978,
    "h": 203.1
  },
  "luminance": 0.01718
}

Semantic roles & 50–950 ramp

primary

#04282B

secondary

#6E231D

accent

#3E2EF9

background

#F4F5F5

surface

#E7EAEA

border

#C3C6C6

text

#010505

muted

#777979

Preview Lab

Preview with #04282B

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

Preview Lab → · Contrast checker → · Palette generator →