#001B18#001B18

#001B18 is a very dark, muted teal. Relative luminance 0.009; OKLCH L 20.0% C 0.035 H 185.0°. Best body text is #FFFFFF at 17.95:1 contrast (WCAG AA passes).

Color values

HEX	#001B18
RGB	rgb(0, 27, 24)
HSL	hsl(173, 100%, 5%)
HSV	hsv(173, 100%, 11%)
CMYK	cmyk(100%, 0%, 11.1%, 89.4%)
CIE-LAB	lab(7.68, -10.28, -1.04)
CIE-LCH	lch(7.68, 10.33, 185.80°)
OKLab	oklab(19.97% -0.0351 -0.003)
OKLCH	oklch(19.97% 0.035 185)
XYZ	xyz(0.5567, 0.8497, 0.9986)
Luminance	0.0085 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#001B18 #1B0003

analogous

#001B0A #001B18 #00101B

triadic

#001B18 #18001B #1B1800

tetradic

#001B18 #0A001B #1B0003 #101B00

square

#001B18 #0A001B #1B0003 #101B00

split-complementary

#001B18 #1B0010 #1B0A00

monochromatic

#001F1B #001F1B #001F1B #00584E #009585

Accessibility & contrast

On white

17.95

#001B18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#001B18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #001B18

17.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##001B18	#FFFFFF	#000000	##FFFFFF
##001B18	1.00	17.95	1.17	17.95
#FFFFFF	17.95	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191918

Deuteranopia (green-blind)

#151618

Tritanopia (blue-blind)

#001C1A

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #001b18;
/* rgb */ color: rgb(0, 27, 24);
/* oklch */ color: oklch(20.0% 0.035 185.0);

Tailwind

colors: {
  custom: {
    50: '#465754',
    500: '#001b18',
    950: '#000000',
  },
}

SCSS

$custom: #001b18;
$custom-light: #465754;
$custom-dark: #000000;

JSON

{
  "hex": "#001b18",
  "rgb": {
    "r": 0,
    "g": 27,
    "b": 24
  },
  "hsl": {
    "h": 173.333,
    "s": 100,
    "l": 5.294
  },
  "oklch": {
    "l": 0.19972,
    "c": 0.0352,
    "h": 185
  },
  "luminance": 0.0085
}

Semantic roles & 50–950 ramp

primary

#001B18

secondary

#65121B

accent

#2941FF

background

#F3F5F4

surface

#E5E9E7

border

#C1C5C3

text

#000302

muted

#767878

Preview Lab

Preview with #001B18

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

Preview Lab → · Contrast checker → · Palette generator →