#172D39#172D39

#172D39 is a dark, muted cyan. Relative luminance 0.024; OKLCH L 28.5% C 0.036 H 233.8°. Best body text is #FFFFFF at 14.28:1 contrast (WCAG AA passes).

Color values

HEX	#172D39
RGB	rgb(23, 45, 57)
HSL	hsl(201, 43%, 16%)
HSV	hsv(201, 60%, 22%)
CMYK	cmyk(59.6%, 21.1%, 0%, 77.6%)
CIE-LAB	lab(17.25, -4.58, -10.35)
CIE-LCH	lch(17.25, 11.32, 246.15°)
OKLab	oklab(28.47% -0.021 -0.0288)
OKLCH	oklch(28.47% 0.036 233.8)
XYZ	xyz(2.0300, 2.3542, 4.2175)
Luminance	0.0235 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172D39 #392317

analogous

#173934 #172D39 #171C39

triadic

#172D39 #39172D #2D3917

tetradic

#172D39 #341739 #392317 #1C3917

square

#172D39 #341739 #392317 #1C3917

split-complementary

#172D39 #39171C #393417

monochromatic

#091116 #091116 #172D39 #294F65 #3A7290

Accessibility & contrast

On white

14.28

#172D39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#172D39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172D39

14.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172D39	#FFFFFF	#000000	##FFFFFF
##172D39	1.00	14.28	1.47	14.28
#FFFFFF	14.28	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#272C3A

Deuteranopia (green-blind)

#232939

Tritanopia (blue-blind)

#053031

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #172d39;
/* rgb */ color: rgb(23, 45, 57);
/* oklch */ color: oklch(28.5% 0.036 233.8);

Tailwind

colors: {
  custom: {
    50: '#57656f',
    500: '#172d39',
    950: '#000000',
  },
}

SCSS

$custom: #172d39;
$custom-light: #57656f;
$custom-dark: #000000;

JSON

{
  "hex": "#172d39",
  "rgb": {
    "r": 23,
    "g": 45,
    "b": 57
  },
  "hsl": {
    "h": 201.176,
    "s": 42.5,
    "l": 15.686
  },
  "oklch": {
    "l": 0.28468,
    "c": 0.03565,
    "h": 233.8
  },
  "luminance": 0.02354
}

Semantic roles & 50–950 ramp

primary

#172D39

secondary

#6F4E3C

accent

#8256D2

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030507

muted

#787A7A

Preview Lab

Preview with #172D39

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

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