#172E39#172E39

#172E39 is a dark, muted cyan. Relative luminance 0.024; OKLCH L 28.8% C 0.035 H 230.4°. Best body text is #FFFFFF at 14.13:1 contrast (WCAG AA passes).

Color values

HEX	#172E39
RGB	rgb(23, 46, 57)
HSL	hsl(199, 43%, 16%)
HSV	hsv(199, 60%, 22%)
CMYK	cmyk(59.6%, 19.3%, 0%, 77.6%)
CIE-LAB	lab(17.61, -5.25, -9.80)
CIE-LCH	lch(17.61, 11.12, 241.81°)
OKLab	oklab(28.75% -0.0225 -0.0272)
OKLCH	oklch(28.75% 0.035 230.4)
XYZ	xyz(2.0686, 2.4314, 4.2304)
Luminance	0.0243 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172E39 #392217

analogous

#173933 #172E39 #171D39

triadic

#172E39 #39172E #2E3917

tetradic

#172E39 #331739 #392217 #1D3917

square

#172E39 #331739 #392217 #1D3917

split-complementary

#172E39 #39171D #393317

monochromatic

#091216 #091216 #172E39 #295165 #3A7490

Accessibility & contrast

On white

14.13

#172E39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#172E39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172E39

14.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172E39	#FFFFFF	#000000	##FFFFFF
##172E39	1.00	14.13	1.49	14.13
#FFFFFF	14.13	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#282D3A

Deuteranopia (green-blind)

#242A39

Tritanopia (blue-blind)

#043132

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #172e39;
/* rgb */ color: rgb(23, 46, 57);
/* oklch */ color: oklch(28.8% 0.035 230.4);

Tailwind

colors: {
  custom: {
    50: '#57666f',
    500: '#172e39',
    950: '#000000',
  },
}

SCSS

$custom: #172e39;
$custom-light: #57666f;
$custom-dark: #000000;

JSON

{
  "hex": "#172e39",
  "rgb": {
    "r": 23,
    "g": 46,
    "b": 57
  },
  "hsl": {
    "h": 199.412,
    "s": 42.5,
    "l": 15.686
  },
  "oklch": {
    "l": 0.28754,
    "c": 0.03531,
    "h": 230.4
  },
  "luminance": 0.02432
}

Semantic roles & 50–950 ramp

primary

#172E39

secondary

#6F4D3C

accent

#7E56D2

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030607

muted

#787A7A

Preview Lab

Preview with #172E39

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

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