#042B1B#042B1B

#042B1B is a dark, muted teal. Relative luminance 0.018; OKLCH L 25.7% C 0.053 H 161.3°. Best body text is #FFFFFF at 15.37:1 contrast (WCAG AA passes).

Color values

HEX	#042B1B
RGB	rgb(4, 43, 27)
HSL	hsl(155, 83%, 9%)
HSV	hsv(155, 91%, 17%)
CMYK	cmyk(90.7%, 0%, 37.2%, 83.1%)
CIE-LAB	lab(14.58, -18.33, 6.65)
CIE-LCH	lch(14.58, 19.49, 160.06°)
OKLab	oklab(25.73% -0.0499 0.0169)
OKLCH	oklch(25.73% 0.053 161.3)
XYZ	xyz(1.1117, 1.8326, 1.3318)
Luminance	0.0183 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Hunter Green (survey)

#0B4008

ΔE00 12.44

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042B1B #2B0414

analogous

#042B08 #042B1B #04282B

triadic

#042B1B #1B042B #2B1B04

tetradic

#042B1B #08042B #2B0414 #282B04

square

#042B1B #08042B #2B0414 #282B04

split-complementary

#042B1B #2B0428 #2B0804

monochromatic

#031C12 #031C12 #042B1B #09633E #0E9B61

Accessibility & contrast

On white

15.37

#042B1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#042B1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042B1B

15.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042B1B	#FFFFFF	#000000	##FFFFFF
##042B1B	1.00	15.37	1.37	15.37
#FFFFFF	15.37	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A271A

Deuteranopia (green-blind)

#25231C

Tritanopia (blue-blind)

#002B27

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #042b1b;
/* rgb */ color: rgb(4, 43, 27);
/* oklch */ color: oklch(25.7% 0.053 161.3);

Tailwind

colors: {
  custom: {
    50: '#4b6557',
    500: '#042b1b',
    950: '#000000',
  },
}

SCSS

$custom: #042b1b;
$custom-light: #4b6557;
$custom-dark: #000000;

JSON

{
  "hex": "#042b1b",
  "rgb": {
    "r": 4,
    "g": 43,
    "b": 27
  },
  "hsl": {
    "h": 155.385,
    "s": 82.979,
    "l": 9.216
  },
  "oklch": {
    "l": 0.25729,
    "c": 0.05273,
    "h": 161.3
  },
  "luminance": 0.01833
}

Semantic roles & 50–950 ramp

primary

#042B1B

secondary

#6E1D3E

accent

#2E82F9

background

#F4F6F5

surface

#E7EBE9

border

#C3C6C5

text

#010503

muted

#777A78

Preview Lab

Preview with #042B1B

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

Preview Lab → · Contrast checker → · Palette generator →