#00171B#00171B

#00171B is a very dark, muted teal. Relative luminance 0.007; OKLCH L 18.7% C 0.032 H 209.4°. Best body text is #FFFFFF at 18.45:1 contrast (WCAG AA passes).

Color values

HEX	#00171B
RGB	rgb(0, 23, 27)
HSL	hsl(189, 100%, 5%)
HSV	hsv(189, 100%, 11%)
CMYK	cmyk(100%, 14.8%, 0%, 89.4%)
CIE-LAB	lab(6.25, -6.29, -5.44)
CIE-LCH	lch(6.25, 8.31, 220.85°)
OKLab	oklab(18.74% -0.0282 -0.0159)
OKLCH	oklch(18.74% 0.032 209.4)
XYZ	xyz(0.5041, 0.6919, 1.1437)
Luminance	0.0069 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#00171B #1B0400

analogous

#001B11 #00171B #00091B

triadic

#00171B #1B0017 #171B00

tetradic

#00171B #11001B #1B0400 #091B00

square

#00171B #11001B #1B0400 #091B00

split-complementary

#00171B #1B0009 #1B1100

monochromatic

#001A1F #001A1F #001A1F #004B58 #007F95

Accessibility & contrast

On white

18.45

#00171B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#00171B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #00171B

18.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##00171B	#FFFFFF	#000000	##FFFFFF
##00171B	1.00	18.45	1.14	18.45
#FFFFFF	18.45	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14161B

Deuteranopia (green-blind)

#0F131B

Tritanopia (blue-blind)

#001918

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #00171b;
/* rgb */ color: rgb(0, 23, 27);
/* oklch */ color: oklch(18.7% 0.032 209.4);

Tailwind

colors: {
  custom: {
    50: '#465357',
    500: '#00171b',
    950: '#000000',
  },
}

SCSS

$custom: #00171b;
$custom-light: #465357;
$custom-dark: #000000;

JSON

{
  "hex": "#00171b",
  "rgb": {
    "r": 0,
    "g": 23,
    "b": 27
  },
  "hsl": {
    "h": 188.889,
    "s": 100,
    "l": 5.294
  },
  "oklch": {
    "l": 0.18739,
    "c": 0.03235,
    "h": 209.4
  },
  "luminance": 0.00692
}

Semantic roles & 50–950 ramp

primary

#00171B

secondary

#651E12

accent

#4929FF

background

#F3F4F5

surface

#E5E7E9

border

#C1C3C5

text

#000203

muted

#767878

Preview Lab

Preview with #00171B

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

Preview Lab → · Contrast checker → · Palette generator →