#00101F#00101F

#00101F is a very dark, muted cyan. Relative luminance 0.005; OKLCH L 16.7% C 0.041 H 244.0°. Best body text is #FFFFFF at 19.20:1 contrast (WCAG AA passes).

Color values

HEX	#00101F
RGB	rgb(0, 16, 31)
HSL	hsl(209, 100%, 6%)
HSV	hsv(209, 100%, 12%)
CMYK	cmyk(100%, 48.4%, 0%, 87.8%)
CIE-LAB	lab(4.24, -0.56, -11.55)
CIE-LCH	lch(4.24, 11.56, 267.21°)
OKLab	oklab(16.67% -0.018 -0.037)
OKLCH	oklch(16.67% 0.041 244)
XYZ	xyz(0.4325, 0.4695, 1.3639)
Luminance	0.0047 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#00101F #1F0F00

analogous

#001F1E #00101F #00011F

triadic

#00101F #1F0010 #101F00

tetradic

#00101F #1E001F #1F0F00 #011F00

square

#00101F #1E001F #1F0F00 #011F00

split-complementary

#00101F #1F0001 #1F1E00

monochromatic

#00101F #00101F #00101F #00305C #004F99

Accessibility & contrast

On white

19.20

#00101F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#00101F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #00101F

19.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##00101F	#FFFFFF	#000000	##FFFFFF
##00101F	1.00	19.20	1.09	19.20
#FFFFFF	19.20	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#091120

Deuteranopia (green-blind)

#040D1F

Tritanopia (blue-blind)

#001415

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #00101f;
/* rgb */ color: rgb(0, 16, 31);
/* oklch */ color: oklch(16.7% 0.041 244.0);

Tailwind

colors: {
  custom: {
    50: '#464e5a',
    500: '#00101f',
    950: '#000000',
  },
}

SCSS

$custom: #00101f;
$custom-light: #464e5a;
$custom-dark: #000000;

JSON

{
  "hex": "#00101f",
  "rgb": {
    "r": 0,
    "g": 16,
    "b": 31
  },
  "hsl": {
    "h": 209.032,
    "s": 100,
    "l": 6.078
  },
  "oklch": {
    "l": 0.16672,
    "c": 0.04114,
    "h": 244
  },
  "luminance": 0.0047
}

Semantic roles & 50–950 ramp

primary

#00101F

secondary

#683C12

accent

#9029FF

background

#F3F4F5

surface

#E5E7E9

border

#C1C3C5

text

#000103

muted

#767778

Preview Lab

Preview with #00101F

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

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