#001F18#001F18

#001F18 is a very dark, muted teal. Relative luminance 0.010; OKLCH L 21.4% C 0.040 H 175.0°. Best body text is #FFFFFF at 17.37:1 contrast (WCAG AA passes).

Color values

HEX	#001F18
RGB	rgb(0, 31, 24)
HSL	hsl(166, 100%, 6%)
HSV	hsv(166, 100%, 12%)
CMYK	cmyk(100%, 0%, 22.6%, 87.8%)
CIE-LAB	lab(9.37, -13.55, 1.42)
CIE-LCH	lch(9.37, 13.63, 174.02°)
OKLab	oklab(21.36% -0.0401 0.0035)
OKLCH	oklch(21.36% 0.04 175)
XYZ	xyz(0.6548, 1.0458, 1.0313)
Luminance	0.0105 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#001F18 #1F0007

analogous

#001F08 #001F18 #00161F

triadic

#001F18 #18001F #1F1800

tetradic

#001F18 #08001F #1F0007 #161F00

square

#001F18 #08001F #1F0007 #161F00

split-complementary

#001F18 #1F0016 #1F0800

monochromatic

#001F18 #001F18 #001F18 #005C47 #009977

Accessibility & contrast

On white

17.37

#001F18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#001F18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #001F18

17.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##001F18	#FFFFFF	#000000	##FFFFFF
##001F18	1.00	17.37	1.21	17.37
#FFFFFF	17.37	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D1C18

Deuteranopia (green-blind)

#191919

Tritanopia (blue-blind)

#00201D

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #001f18;
/* rgb */ color: rgb(0, 31, 24);
/* oklch */ color: oklch(21.4% 0.040 175.0);

Tailwind

colors: {
  custom: {
    50: '#455a54',
    500: '#001f18',
    950: '#000000',
  },
}

SCSS

$custom: #001f18;
$custom-light: #455a54;
$custom-dark: #000000;

JSON

{
  "hex": "#001f18",
  "rgb": {
    "r": 0,
    "g": 31,
    "b": 24
  },
  "hsl": {
    "h": 166.452,
    "s": 100,
    "l": 6.078
  },
  "oklch": {
    "l": 0.21362,
    "c": 0.0403,
    "h": 175
  },
  "luminance": 0.01046
}

Semantic roles & 50–950 ramp

primary

#001F18

secondary

#681226

accent

#2959FF

background

#F3F5F4

surface

#E5E9E7

border

#C1C5C3

text

#000402

muted

#767978

Preview Lab

Preview with #001F18

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

Preview Lab → · Contrast checker → · Palette generator →