#00101A#00101A

#00101A is a very dark, muted cyan. Relative luminance 0.004; OKLCH L 16.3% C 0.034 H 233.4°. Best body text is #FFFFFF at 19.28:1 contrast (WCAG AA passes).

Color values

HEX	#00101A
RGB	rgb(0, 16, 26)
HSL	hsl(203, 100%, 5%)
HSV	hsv(203, 100%, 10%)
CMYK	cmyk(100%, 38.5%, 0%, 89.8%)
CIE-LAB	lab(4.02, -2.10, -7.96)
CIE-LCH	lch(4.02, 8.24, 255.20°)
OKLab	oklab(16.29% -0.0202 -0.0271)
OKLCH	oklch(16.29% 0.034 233.4)
XYZ	xyz(0.3717, 0.4451, 1.0434)
Luminance	0.0044 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#00101A #1A0A00

analogous

#001A17 #00101A #00031A

triadic

#00101A #1A0010 #101A00

tetradic

#00101A #17001A #1A0A00 #031A00

square

#00101A #17001A #1A0A00 #031A00

split-complementary

#00101A #1A0003 #1A1700

monochromatic

#00131F #00131F #00131F #003657 #005B94

Accessibility & contrast

On white

19.28

#00101A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#00101A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #00101A

19.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##00101A	#FFFFFF	#000000	##FFFFFF
##00101A	1.00	19.28	1.09	19.28
#FFFFFF	19.28	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B101A

Deuteranopia (green-blind)

#070D1A

Tritanopia (blue-blind)

#001313

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #00101a;
/* rgb */ color: rgb(0, 16, 26);
/* oklch */ color: oklch(16.3% 0.034 233.4);

Tailwind

colors: {
  custom: {
    50: '#464e56',
    500: '#00101a',
    950: '#000000',
  },
}

SCSS

$custom: #00101a;
$custom-light: #464e56;
$custom-dark: #000000;

JSON

{
  "hex": "#00101a",
  "rgb": {
    "r": 0,
    "g": 16,
    "b": 26
  },
  "hsl": {
    "h": 203.077,
    "s": 100,
    "l": 5.098
  },
  "oklch": {
    "l": 0.16289,
    "c": 0.03381,
    "h": 233.4
  },
  "luminance": 0.00445
}

Semantic roles & 50–950 ramp

primary

#00101A

secondary

#643112

accent

#7B29FF

background

#F3F4F5

surface

#E5E7E9

border

#C1C3C5

text

#000103

muted

#767778

Preview Lab

Preview with #00101A

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

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