#01172B#01172B

#01172B is a very dark, muted cyan. Relative luminance 0.008; OKLCH L 19.9% C 0.050 H 247.2°. Best body text is #FFFFFF at 18.12:1 contrast (WCAG AA passes).

Color values

HEX	#01172B
RGB	rgb(1, 23, 43)
HSL	hsl(209, 95%, 9%)
HSV	hsv(209, 98%, 17%)
CMYK	cmyk(97.7%, 46.5%, 0%, 83.1%)
CIE-LAB	lab(7.17, 0.02, -16.12)
CIE-LCH	lch(7.17, 16.12, 270.07°)
OKLab	oklab(19.9% -0.0194 -0.0462)
OKLCH	oklch(19.9% 0.05 247.2)
XYZ	xyz(0.7548, 0.7936, 2.3984)
Luminance	0.0079 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#01172B #2B1501

analogous

#012B2A #01172B #01022B

triadic

#01172B #2B0117 #172B01

tetradic

#01172B #2A012B #2B1501 #022B01

square

#01172B #2A012B #2B1501 #022B01

split-complementary

#01172B #2B0102 #2B2A01

monochromatic

#01101E #01101E #01172B #023767 #0457A3

Accessibility & contrast

On white

18.12

#01172B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#01172B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #01172B

18.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##01172B	#FFFFFF	#000000	##FFFFFF
##01172B	1.00	18.12	1.16	18.12
#FFFFFF	18.12	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D182C

Deuteranopia (green-blind)

#07142B

Tritanopia (blue-blind)

#001C1E

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #01172b;
/* rgb */ color: rgb(1, 23, 43);
/* oklch */ color: oklch(19.9% 0.050 247.2);

Tailwind

colors: {
  custom: {
    50: '#485364',
    500: '#01172b',
    950: '#000000',
  },
}

SCSS

$custom: #01172b;
$custom-light: #485364;
$custom-dark: #000000;

JSON

{
  "hex": "#01172b",
  "rgb": {
    "r": 1,
    "g": 23,
    "b": 43
  },
  "hsl": {
    "h": 208.571,
    "s": 95.455,
    "l": 8.627
  },
  "oklch": {
    "l": 0.19901,
    "c": 0.05012,
    "h": 247.2
  },
  "luminance": 0.00794
}

Semantic roles & 50–950 ramp

primary

#01172B

secondary

#714217

accent

#8F29FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010205

muted

#77787A

Preview Lab

Preview with #01172B

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

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