#172F3C#172F3C

#172F3C is a dark, muted cyan. Relative luminance 0.025; OKLCH L 29.2% C 0.038 H 233.9°. Best body text is #FFFFFF at 13.92:1 contrast (WCAG AA passes).

Color values

HEX	#172F3C
RGB	rgb(23, 47, 60)
HSL	hsl(201, 45%, 16%)
HSV	hsv(201, 62%, 24%)
CMYK	cmyk(61.7%, 21.7%, 0%, 76.5%)
CIE-LAB	lab(18.10, -4.83, -11.11)
CIE-LCH	lch(18.10, 12.11, 246.51°)
OKLab	oklab(29.2% -0.0226 -0.0309)
OKLCH	oklch(29.2% 0.038 233.9)
XYZ	xyz(2.1852, 2.5412, 4.6494)
Luminance	0.0254 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F3C #3C2417

analogous

#173C37 #172F3C #171D3C

triadic

#172F3C #3C172F #2F3C17

tetradic

#172F3C #37173C #3C2417 #1D3C17

square

#172F3C #37173C #3C2417 #1D3C17

split-complementary

#172F3C #3C171D #3C3717

monochromatic

#081116 #081116 #172F3C #285268 #397494

Accessibility & contrast

On white

13.92

#172F3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#172F3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F3C

13.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F3C	#FFFFFF	#000000	##FFFFFF
##172F3C	1.00	13.92	1.51	13.92
#FFFFFF	13.92	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#292E3D

Deuteranopia (green-blind)

#242B3C

Tritanopia (blue-blind)

#023233

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #172f3c;
/* rgb */ color: rgb(23, 47, 60);
/* oklch */ color: oklch(29.2% 0.038 233.9);

Tailwind

colors: {
  custom: {
    50: '#576771',
    500: '#172f3c',
    950: '#000000',
  },
}

SCSS

$custom: #172f3c;
$custom-light: #576771;
$custom-dark: #000000;

JSON

{
  "hex": "#172f3c",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 60
  },
  "hsl": {
    "h": 201.081,
    "s": 44.578,
    "l": 16.275
  },
  "oklch": {
    "l": 0.29196,
    "c": 0.03829,
    "h": 233.9
  },
  "luminance": 0.02541
}

Semantic roles & 50–950 ramp

primary

#172F3C

secondary

#734F3C

accent

#8154D4

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030607

muted

#787A7A

Preview Lab

Preview with #172F3C

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

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