#172A37#172A37

#172A37 is a dark, muted cyan. Relative luminance 0.021; OKLCH L 27.5% C 0.035 H 239.7°. Best body text is #FFFFFF at 14.76:1 contrast (WCAG AA passes).

Color values

HEX	#172A37
RGB	rgb(23, 42, 55)
HSL	hsl(204, 41%, 15%)
HSV	hsv(204, 58%, 22%)
CMYK	cmyk(58.2%, 23.6%, 0%, 78.4%)
CIE-LAB	lab(16.07, -3.25, -10.76)
CIE-LCH	lch(16.07, 11.24, 253.19°)
OKLab	oklab(27.51% -0.0175 -0.0299)
OKLCH	oklch(27.51% 0.035 239.7)
XYZ	xyz(1.8707, 2.1138, 3.9231)
Luminance	0.0211 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172A37 #372417

analogous

#173734 #172A37 #171A37

triadic

#172A37 #37172A #2A3717

tetradic

#172A37 #341737 #372417 #1A3717

square

#172A37 #341737 #372417 #1A3717

split-complementary

#172A37 #37171A #373417

monochromatic

#091016 #091016 #172A37 #294B62 #3B6C8D

Accessibility & contrast

On white

14.76

#172A37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#172A37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172A37

14.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172A37	#FFFFFF	#000000	##FFFFFF
##172A37	1.00	14.76	1.42	14.76
#FFFFFF	14.76	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#242A38

Deuteranopia (green-blind)

#202637

Tritanopia (blue-blind)

#072D2E

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #172a37;
/* rgb */ color: rgb(23, 42, 55);
/* oklch */ color: oklch(27.5% 0.035 239.7);

Tailwind

colors: {
  custom: {
    50: '#56636d',
    500: '#172a37',
    950: '#000000',
  },
}

SCSS

$custom: #172a37;
$custom-light: #56636d;
$custom-dark: #000000;

JSON

{
  "hex": "#172a37",
  "rgb": {
    "r": 23,
    "g": 42,
    "b": 55
  },
  "hsl": {
    "h": 204.375,
    "s": 41.026,
    "l": 15.294
  },
  "oklch": {
    "l": 0.27507,
    "c": 0.03469,
    "h": 239.7
  },
  "luminance": 0.02114
}

Semantic roles & 50–950 ramp

primary

#172A37

secondary

#6D503D

accent

#8857D1

background

#F5F5F6

surface

#E9EAEB

border

#C5C6C6

text

#030507

muted

#78797A

Preview Lab

Preview with #172A37

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

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