#00101C#00101C

#00101C is a very dark, muted cyan. Relative luminance 0.005; OKLCH L 16.4% C 0.037 H 238.3°. Best body text is #FFFFFF at 19.25:1 contrast (WCAG AA passes).

Color values

HEX	#00101C
RGB	rgb(0, 16, 28)
HSL	hsl(206, 100%, 5%)
HSV	hsv(206, 100%, 11%)
CMYK	cmyk(100%, 42.9%, 0%, 89%)
CIE-LAB	lab(4.10, -1.52, -9.41)
CIE-LCH	lch(4.10, 9.53, 260.83°)
OKLab	oklab(16.44% -0.0192 -0.0311)
OKLCH	oklch(16.44% 0.037 238.3)
XYZ	xyz(0.3948, 0.4544, 1.1653)
Luminance	0.0045 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#00101C #1C0C00

analogous

#001C1A #00101C #00021C

triadic

#00101C #1C0010 #101C00

tetradic

#00101C #1A001C #1C0C00 #021C00

square

#00101C #1A001C #1C0C00 #021C00

split-complementary

#00101C #1C0002 #1C1A00

monochromatic

#00111F #00111F #00111F #003359 #005696

Accessibility & contrast

On white

19.25

#00101C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#00101C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #00101C

19.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##00101C	#FFFFFF	#000000	##FFFFFF
##00101C	1.00	19.25	1.09	19.25
#FFFFFF	19.25	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A101D

Deuteranopia (green-blind)

#060D1C

Tritanopia (blue-blind)

#001314

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #00101c;
/* rgb */ color: rgb(0, 16, 28);
/* oklch */ color: oklch(16.4% 0.037 238.3);

Tailwind

colors: {
  custom: {
    50: '#464e58',
    500: '#00101c',
    950: '#000000',
  },
}

SCSS

$custom: #00101c;
$custom-light: #464e58;
$custom-dark: #000000;

JSON

{
  "hex": "#00101c",
  "rgb": {
    "r": 0,
    "g": 16,
    "b": 28
  },
  "hsl": {
    "h": 205.714,
    "s": 100,
    "l": 5.49
  },
  "oklch": {
    "l": 0.16436,
    "c": 0.03658,
    "h": 238.3
  },
  "luminance": 0.00454
}

Semantic roles & 50–950 ramp

primary

#00101C

secondary

#663612

accent

#8529FF

background

#F3F4F5

surface

#E5E7E9

border

#C1C3C5

text

#000103

muted

#767778

Preview Lab

Preview with #00101C

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

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