#001728#001728

#001728 is a very dark, muted cyan. Relative luminance 0.008; OKLCH L 19.6% C 0.046 H 241.9°. Best body text is #FFFFFF at 18.21:1 contrast (WCAG AA passes).

Color values

HEX	#001728
RGB	rgb(0, 23, 40)
HSL	hsl(206, 100%, 8%)
HSV	hsv(206, 100%, 16%)
CMYK	cmyk(100%, 42.5%, 0%, 84.3%)
CIE-LAB	lab(6.92, -1.59, -14.28)
CIE-LCH	lch(6.92, 14.37, 263.65°)
OKLab	oklab(19.6% -0.0219 -0.0409)
OKLCH	oklch(19.6% 0.046 241.9)
XYZ	xyz(0.6892, 0.7659, 2.1186)
Luminance	0.0077 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#001728 #281100

analogous

#002825 #001728 #000328

triadic

#001728 #280017 #172800

tetradic

#001728 #250028 #281100 #032800

square

#001728 #250028 #281100 #032800

split-complementary

#001728 #280003 #282500

monochromatic

#00121F #00121F #001728 #003A65 #005DA2

Accessibility & contrast

On white

18.21

#001728 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#001728 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #001728

18.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##001728	#FFFFFF	#000000	##FFFFFF
##001728	1.00	18.21	1.15	18.21
#FFFFFF	18.21	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F1729

Deuteranopia (green-blind)

#081428

Tritanopia (blue-blind)

#001B1D

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #001728;
/* rgb */ color: rgb(0, 23, 40);
/* oklch */ color: oklch(19.6% 0.046 241.9);

Tailwind

colors: {
  custom: {
    50: '#475362',
    500: '#001728',
    950: '#000000',
  },
}

SCSS

$custom: #001728;
$custom-light: #475362;
$custom-dark: #000000;

JSON

{
  "hex": "#001728",
  "rgb": {
    "r": 0,
    "g": 23,
    "b": 40
  },
  "hsl": {
    "h": 205.5,
    "s": 100,
    "l": 7.843
  },
  "oklch": {
    "l": 0.196,
    "c": 0.04642,
    "h": 241.9
  },
  "luminance": 0.00766
}

Semantic roles & 50–950 ramp

primary

#001728

secondary

#703B14

accent

#8429FF

background

#F4F4F5

surface

#E6E7EA

border

#C2C3C6

text

#000205

muted

#777879

Preview Lab

Preview with #001728

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

Preview Lab → · Contrast checker → · Palette generator →