#001F1B#001F1B

#001F1B is a very dark, muted teal. Relative luminance 0.011; OKLCH L 21.5% C 0.038 H 182.9°. Best body text is #FFFFFF at 17.33:1 contrast (WCAG AA passes).

Color values

HEX	#001F1B
RGB	rgb(0, 31, 27)
HSL	hsl(172, 100%, 6%)
HSV	hsv(172, 100%, 12%)
CMYK	cmyk(100%, 0%, 12.9%, 87.8%)
CIE-LAB	lab(9.47, -12.66, -0.65)
CIE-LCH	lch(9.47, 12.68, 182.93°)
OKLab	oklab(21.48% -0.0382 -0.002)
OKLCH	oklch(21.48% 0.038 182.9)
XYZ	xyz(0.6877, 1.0590, 1.2049)
Luminance	0.0106 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#001F1B #1F0004

analogous

#001F0B #001F1B #00131F

triadic

#001F1B #1B001F #1F1B00

tetradic

#001F1B #0B001F #1F0004 #131F00

square

#001F1B #0B001F #1F0004 #131F00

split-complementary

#001F1B #1F0013 #1F0B00

monochromatic

#001F1B #001F1B #001F1B #005C50 #009986

Accessibility & contrast

On white

17.33

#001F1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#001F1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #001F1B

17.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##001F1B	#FFFFFF	#000000	##FFFFFF
##001F1B	1.00	17.33	1.21	17.33
#FFFFFF	17.33	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D1C1B

Deuteranopia (green-blind)

#18191B

Tritanopia (blue-blind)

#00201E

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #001f1b;
/* rgb */ color: rgb(0, 31, 27);
/* oklch */ color: oklch(21.5% 0.038 182.9);

Tailwind

colors: {
  custom: {
    50: '#455a57',
    500: '#001f1b',
    950: '#000000',
  },
}

SCSS

$custom: #001f1b;
$custom-light: #455a57;
$custom-dark: #000000;

JSON

{
  "hex": "#001f1b",
  "rgb": {
    "r": 0,
    "g": 31,
    "b": 27
  },
  "hsl": {
    "h": 172.258,
    "s": 100,
    "l": 6.078
  },
  "oklch": {
    "l": 0.21484,
    "c": 0.03827,
    "h": 182.9
  },
  "luminance": 0.01059
}

Semantic roles & 50–950 ramp

primary

#001F1B

secondary

#68121E

accent

#2944FF

background

#F3F5F5

surface

#E5E9E9

border

#C1C5C5

text

#000403

muted

#767978

Preview Lab

Preview with #001F1B

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

Preview Lab → · Contrast checker → · Palette generator →