#00121F#00121F

#00121F is a very dark, muted cyan. Relative luminance 0.005; OKLCH L 17.3% C 0.039 H 238.7°. Best body text is #FFFFFF at 18.98:1 contrast (WCAG AA passes).

Color values

HEX	#00121F
RGB	rgb(0, 18, 31)
HSL	hsl(205, 100%, 6%)
HSV	hsv(205, 100%, 12%)
CMYK	cmyk(100%, 41.9%, 0%, 87.8%)
CIE-LAB	lab(4.80, -1.71, -10.70)
CIE-LCH	lch(4.80, 10.84, 260.94°)
OKLab	oklab(17.32% -0.0202 -0.0331)
OKLCH	oklch(17.32% 0.039 238.7)
XYZ	xyz(0.4635, 0.5315, 1.3742)
Luminance	0.0053 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#00121F #1F0D00

analogous

#001F1C #00121F #00021F

triadic

#00121F #1F0012 #121F00

tetradic

#00121F #1C001F #1F0D00 #021F00

square

#00121F #1C001F #1F0D00 #021F00

split-complementary

#00121F #1F0002 #1F1C00

monochromatic

#00121F #00121F #00121F #00365C #005999

Accessibility & contrast

On white

18.98

#00121F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#00121F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #00121F

18.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##00121F	#FFFFFF	#000000	##FFFFFF
##00121F	1.00	18.98	1.11	18.98
#FFFFFF	18.98	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C1220

Deuteranopia (green-blind)

#070F1F

Tritanopia (blue-blind)

#001517

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #00121f;
/* rgb */ color: rgb(0, 18, 31);
/* oklch */ color: oklch(17.3% 0.039 238.7);

Tailwind

colors: {
  custom: {
    50: '#46505a',
    500: '#00121f',
    950: '#000000',
  },
}

SCSS

$custom: #00121f;
$custom-light: #46505a;
$custom-dark: #000000;

JSON

{
  "hex": "#00121f",
  "rgb": {
    "r": 0,
    "g": 18,
    "b": 31
  },
  "hsl": {
    "h": 205.161,
    "s": 100,
    "l": 6.078
  },
  "oklch": {
    "l": 0.17322,
    "c": 0.03881,
    "h": 238.7
  },
  "luminance": 0.00532
}

Semantic roles & 50–950 ramp

primary

#00121F

secondary

#683612

accent

#8329FF

background

#F3F4F5

surface

#E5E7E9

border

#C1C3C5

text

#000203

muted

#767878

Preview Lab

Preview with #00121F

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

Preview Lab → · Contrast checker → · Palette generator →