#172D3F#172D3F

#172D3F is a dark, muted cyan. Relative luminance 0.024; OKLCH L 28.8% C 0.043 H 244.8°. Best body text is #FFFFFF at 14.15:1 contrast (WCAG AA passes).

Color values

HEX	#172D3F
RGB	rgb(23, 45, 63)
HSL	hsl(207, 47%, 17%)
HSV	hsv(207, 63%, 25%)
CMYK	cmyk(63.5%, 28.6%, 0%, 75.3%)
CIE-LAB	lab(17.54, -2.33, -14.04)
CIE-LCH	lch(17.54, 14.23, 260.58°)
OKLab	oklab(28.8% -0.0185 -0.0393)
OKLCH	oklch(28.8% 0.043 244.8)
XYZ	xyz(2.1886, 2.4176, 5.0530)
Luminance	0.0242 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172D3F #3F2917

analogous

#173F3D #172D3F #17193F

triadic

#172D3F #3F172D #2D3F17

tetradic

#172D3F #3D173F #3F2917 #193F17

square

#172D3F #3D173F #3F2917 #193F17

split-complementary

#172D3F #3F1719 #3F3D17

monochromatic

#081016 #081016 #172D3F #274D6C #386D99

Accessibility & contrast

On white

14.15

#172D3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#172D3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172D3F

14.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172D3F	#FFFFFF	#000000	##FFFFFF
##172D3F	1.00	14.15	1.48	14.15
#FFFFFF	14.15	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#252D40

Deuteranopia (green-blind)

#20293F

Tritanopia (blue-blind)

#003133

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #172d3f;
/* rgb */ color: rgb(23, 45, 63);
/* oklch */ color: oklch(28.8% 0.043 244.8);

Tailwind

colors: {
  custom: {
    50: '#586574',
    500: '#172d3f',
    950: '#000000',
  },
}

SCSS

$custom: #172d3f;
$custom-light: #586574;
$custom-dark: #000000;

JSON

{
  "hex": "#172d3f",
  "rgb": {
    "r": 23,
    "g": 45,
    "b": 63
  },
  "hsl": {
    "h": 207,
    "s": 46.512,
    "l": 16.863
  },
  "oklch": {
    "l": 0.288,
    "c": 0.04347,
    "h": 244.8
  },
  "luminance": 0.02418
}

Semantic roles & 50–950 ramp

primary

#172D3F

secondary

#76563C

accent

#8D52D6

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030508

muted

#787A7B

Preview Lab

Preview with #172D3F

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

Preview Lab → · Contrast checker → · Palette generator →