#01212B#01212B

#01212B is a very dark, muted cyan. Relative luminance 0.013; OKLCH L 23.0% C 0.042 H 222.7°. Best body text is #FFFFFF at 16.75:1 contrast (WCAG AA passes).

Color values

HEX	#01212B
RGB	rgb(1, 33, 43)
HSL	hsl(194, 95%, 9%)
HSV	hsv(194, 98%, 17%)
CMYK	cmyk(97.7%, 23.3%, 0%, 83.1%)
CIE-LAB	lab(11.05, -7.33, -10.03)
CIE-LCH	lch(11.05, 12.43, 233.83°)
OKLab	oklab(23.02% -0.0306 -0.0282)
OKLCH	oklch(23.02% 0.042 222.7)
XYZ	xyz(0.9922, 1.2685, 2.4776)
Luminance	0.0127 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#01212B #2B0B01

analogous

#012B20 #01212B #010C2B

triadic

#01212B #2B0121 #212B01

tetradic

#01212B #20012B #2B0B01 #0C2B01

square

#01212B #20012B #2B0B01 #0C2B01

split-complementary

#01212B #2B010C #2B2001

monochromatic

#01171E #01171E #01212B #024F67 #047DA3

Accessibility & contrast

On white

16.75

#01212B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#01212B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #01212B

16.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##01212B	#FFFFFF	#000000	##FFFFFF
##01212B	1.00	16.75	1.25	16.75
#FFFFFF	16.75	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B202C

Deuteranopia (green-blind)

#151C2B

Tritanopia (blue-blind)

#002424

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #01212b;
/* rgb */ color: rgb(1, 33, 43);
/* oklch */ color: oklch(23.0% 0.042 222.7);

Tailwind

colors: {
  custom: {
    50: '#495c64',
    500: '#01212b',
    950: '#000000',
  },
}

SCSS

$custom: #01212b;
$custom-light: #495c64;
$custom-dark: #000000;

JSON

{
  "hex": "#01212b",
  "rgb": {
    "r": 1,
    "g": 33,
    "b": 43
  },
  "hsl": {
    "h": 194.286,
    "s": 95.455,
    "l": 8.627
  },
  "oklch": {
    "l": 0.23017,
    "c": 0.04158,
    "h": 222.7
  },
  "luminance": 0.01269
}

Semantic roles & 50–950 ramp

primary

#01212B

secondary

#712C17

accent

#5C29FF

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#010405

muted

#777979

Preview Lab

Preview with #01212B

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

Preview Lab → · Contrast checker → · Palette generator →