#172C3A#172C3A

#172C3A is a dark, muted cyan. Relative luminance 0.023; OKLCH L 28.2% C 0.037 H 239.2°. Best body text is #FFFFFF at 14.41:1 contrast (WCAG AA passes).

Color values

HEX	#172C3A
RGB	rgb(23, 44, 58)
HSL	hsl(204, 43%, 16%)
HSV	hsv(204, 60%, 23%)
CMYK	cmyk(60.3%, 24.1%, 0%, 77.3%)
CIE-LAB	lab(16.94, -3.52, -11.52)
CIE-LCH	lch(16.94, 12.05, 253.00°)
OKLab	oklab(28.24% -0.0192 -0.0321)
OKLCH	oklch(28.24% 0.037 239.2)
XYZ	xyz(2.0175, 2.2888, 4.3376)
Luminance	0.0229 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172C3A #3A2517

analogous

#173A36 #172C3A #171A3A

triadic

#172C3A #3A172C #2C3A17

tetradic

#172C3A #36173A #3A2517 #1A3A17

square

#172C3A #36173A #3A2517 #1A3A17

split-complementary

#172C3A #3A171A #3A3617

monochromatic

#091116 #091116 #172C3A #284D66 #3A6E92

Accessibility & contrast

On white

14.41

#172C3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#172C3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172C3A

14.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172C3A	#FFFFFF	#000000	##FFFFFF
##172C3A	1.00	14.41	1.46	14.41
#FFFFFF	14.41	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#262C3B

Deuteranopia (green-blind)

#21283A

Tritanopia (blue-blind)

#043031

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #172c3a;
/* rgb */ color: rgb(23, 44, 58);
/* oklch */ color: oklch(28.2% 0.037 239.2);

Tailwind

colors: {
  custom: {
    50: '#576570',
    500: '#172c3a',
    950: '#000000',
  },
}

SCSS

$custom: #172c3a;
$custom-light: #576570;
$custom-dark: #000000;

JSON

{
  "hex": "#172c3a",
  "rgb": {
    "r": 23,
    "g": 44,
    "b": 58
  },
  "hsl": {
    "h": 204,
    "s": 43.21,
    "l": 15.882
  },
  "oklch": {
    "l": 0.28238,
    "c": 0.03739,
    "h": 239.2
  },
  "luminance": 0.02289
}

Semantic roles & 50–950 ramp

primary

#172C3A

secondary

#71513C

accent

#8755D3

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030507

muted

#787A7A

Preview Lab

Preview with #172C3A

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

Preview Lab → · Contrast checker → · Palette generator →