#001F28#001F28

#001F28 is a very dark, muted cyan. Relative luminance 0.011; OKLCH L 22.1% C 0.041 H 220.6°. Best body text is #FFFFFF at 17.12:1 contrast (WCAG AA passes).

Color values

HEX	#001F28
RGB	rgb(0, 31, 40)
HSL	hsl(194, 100%, 8%)
HSV	hsv(194, 100%, 16%)
CMYK	cmyk(100%, 22.5%, 0%, 84.3%)
CIE-LAB	lab(10.05, -7.60, -9.38)
CIE-LCH	lch(10.05, 12.08, 231.00°)
OKLab	oklab(22.15% -0.0307 -0.0264)
OKLCH	oklch(22.15% 0.041 220.6)
XYZ	xyz(0.8728, 1.1331, 2.1798)
Luminance	0.0113 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#001F28 #280900

analogous

#00281D #001F28 #000B28

triadic

#001F28 #28001F #1F2800

tetradic

#001F28 #1D0028 #280900 #0B2800

square

#001F28 #1D0028 #280900 #0B2800

split-complementary

#001F28 #28000B #281D00

monochromatic

#00181F #00181F #001F28 #004E65 #007EA2

Accessibility & contrast

On white

17.12

#001F28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#001F28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #001F28

17.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##001F28	#FFFFFF	#000000	##FFFFFF
##001F28	1.00	17.12	1.23	17.12
#FFFFFF	17.12	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1E28

Deuteranopia (green-blind)

#141A28

Tritanopia (blue-blind)

#002222

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #001f28;
/* rgb */ color: rgb(0, 31, 40);
/* oklch */ color: oklch(22.1% 0.041 220.6);

Tailwind

colors: {
  custom: {
    50: '#475a61',
    500: '#001f28',
    950: '#000000',
  },
}

SCSS

$custom: #001f28;
$custom-light: #475a61;
$custom-dark: #000000;

JSON

{
  "hex": "#001f28",
  "rgb": {
    "r": 0,
    "g": 31,
    "b": 40
  },
  "hsl": {
    "h": 193.5,
    "s": 100,
    "l": 7.843
  },
  "oklch": {
    "l": 0.22148,
    "c": 0.0405,
    "h": 220.6
  },
  "luminance": 0.01133
}

Semantic roles & 50–950 ramp

primary

#001F28

secondary

#702914

accent

#5929FF

background

#F4F5F5

surface

#E6E9E9

border

#C2C5C5

text

#000305

muted

#777879

Preview Lab

Preview with #001F28

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

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