#172F3B#172F3B

#172F3B is a dark, muted cyan. Relative luminance 0.025; OKLCH L 29.1% C 0.037 H 231.7°. Best body text is #FFFFFF at 13.94:1 contrast (WCAG AA passes).

Color values

HEX	#172F3B
RGB	rgb(23, 47, 59)
HSL	hsl(200, 44%, 16%)
HSV	hsv(200, 61%, 23%)
CMYK	cmyk(61%, 20.3%, 0%, 76.9%)
CIE-LAB	lab(18.06, -5.20, -10.49)
CIE-LCH	lch(18.06, 11.70, 243.65°)
OKLab	oklab(29.14% -0.023 -0.0292)
OKLCH	oklch(29.14% 0.037 231.7)
XYZ	xyz(2.1590, 2.5308, 4.5115)
Luminance	0.0253 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F3B #3B2317

analogous

#173B35 #172F3B #171D3B

triadic

#172F3B #3B172F #2F3B17

tetradic

#172F3B #35173B #3B2317 #1D3B17

square

#172F3B #35173B #3B2317 #1D3B17

split-complementary

#172F3B #3B171D #3B3517

monochromatic

#091216 #091216 #172F3B #285267 #397593

Accessibility & contrast

On white

13.94

#172F3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#172F3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F3B

13.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F3B	#FFFFFF	#000000	##FFFFFF
##172F3B	1.00	13.94	1.51	13.94
#FFFFFF	13.94	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#292E3C

Deuteranopia (green-blind)

#242A3B

Tritanopia (blue-blind)

#023233

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #172f3b;
/* rgb */ color: rgb(23, 47, 59);
/* oklch */ color: oklch(29.1% 0.037 231.7);

Tailwind

colors: {
  custom: {
    50: '#576771',
    500: '#172f3b',
    950: '#000000',
  },
}

SCSS

$custom: #172f3b;
$custom-light: #576771;
$custom-dark: #000000;

JSON

{
  "hex": "#172f3b",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 59
  },
  "hsl": {
    "h": 200,
    "s": 43.902,
    "l": 16.078
  },
  "oklch": {
    "l": 0.29143,
    "c": 0.03715,
    "h": 231.7
  },
  "luminance": 0.02531
}

Semantic roles & 50–950 ramp

primary

#172F3B

secondary

#724E3C

accent

#7F54D4

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030607

muted

#787A7A

Preview Lab

Preview with #172F3B

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

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