#172D3A#172D3A

#172D3A is a dark, muted cyan. Relative luminance 0.024; OKLCH L 28.5% C 0.037 H 236.0°. Best body text is #FFFFFF at 14.26:1 contrast (WCAG AA passes).

Color values

HEX	#172D3A
RGB	rgb(23, 45, 58)
HSL	hsl(202, 43%, 16%)
HSV	hsv(202, 60%, 23%)
CMYK	cmyk(60.3%, 22.4%, 0%, 77.3%)
CIE-LAB	lab(17.29, -4.21, -10.97)
CIE-LCH	lch(17.29, 11.75, 249.01°)
OKLab	oklab(28.52% -0.0206 -0.0305)
OKLCH	oklch(28.52% 0.037 236)
XYZ	xyz(2.0552, 2.3643, 4.3502)
Luminance	0.0236 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172D3A #3A2417

analogous

#173A35 #172D3A #171B3A

triadic

#172D3A #3A172D #2D3A17

tetradic

#172D3A #35173A #3A2417 #1B3A17

square

#172D3A #35173A #3A2417 #1B3A17

split-complementary

#172D3A #3A171B #3A3517

monochromatic

#091116 #091116 #172D3A #284F66 #3A7192

Accessibility & contrast

On white

14.26

#172D3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#172D3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172D3A

14.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172D3A	#FFFFFF	#000000	##FFFFFF
##172D3A	1.00	14.26	1.47	14.26
#FFFFFF	14.26	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#272D3B

Deuteranopia (green-blind)

#22293A

Tritanopia (blue-blind)

#043031

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #172d3a;
/* rgb */ color: rgb(23, 45, 58);
/* oklch */ color: oklch(28.5% 0.037 236.0);

Tailwind

colors: {
  custom: {
    50: '#576570',
    500: '#172d3a',
    950: '#000000',
  },
}

SCSS

$custom: #172d3a;
$custom-light: #576570;
$custom-dark: #000000;

JSON

{
  "hex": "#172d3a",
  "rgb": {
    "r": 23,
    "g": 45,
    "b": 58
  },
  "hsl": {
    "h": 202.286,
    "s": 43.21,
    "l": 15.882
  },
  "oklch": {
    "l": 0.28521,
    "c": 0.03684,
    "h": 236
  },
  "luminance": 0.02364
}

Semantic roles & 50–950 ramp

primary

#172D3A

secondary

#71503C

accent

#8455D3

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030507

muted

#787A7A

Preview Lab

Preview with #172D3A

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

Preview Lab → · Contrast checker → · Palette generator →