#172B3D#172B3D

#172B3D is a dark, muted cyan. Relative luminance 0.022; OKLCH L 28.1% C 0.042 H 247.1°. Best body text is #FFFFFF at 14.49:1 contrast (WCAG AA passes).

Color values

HEX	#172B3D
RGB	rgb(23, 43, 61)
HSL	hsl(208, 45%, 16%)
HSV	hsv(208, 62%, 24%)
CMYK	cmyk(62.3%, 29.5%, 0%, 76.1%)
CIE-LAB	lab(16.73, -1.70, -13.92)
CIE-LCH	lch(16.73, 14.02, 263.04°)
OKLab	oklab(28.13% -0.0165 -0.039)
OKLCH	oklch(28.13% 0.042 247.1)
XYZ	xyz(2.0592, 2.2467, 4.7391)
Luminance	0.0225 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172B3D #3D2917

analogous

#173D3C #172B3D #17183D

triadic

#172B3D #3D172B #2B3D17

tetradic

#172B3D #3C173D #3D2917 #183D17

square

#172B3D #3C173D #3D2917 #183D17

split-complementary

#172B3D #3D1718 #3D3C17

monochromatic

#081016 #081016 #172B3D #284A69 #396A96

Accessibility & contrast

On white

14.49

#172B3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#172B3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172B3D

14.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172B3D	#FFFFFF	#000000	##FFFFFF
##172B3D	1.00	14.49	1.45	14.49
#FFFFFF	14.49	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#232B3E

Deuteranopia (green-blind)

#1E283D

Tritanopia (blue-blind)

#022F31

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #172b3d;
/* rgb */ color: rgb(23, 43, 61);
/* oklch */ color: oklch(28.1% 0.042 247.1);

Tailwind

colors: {
  custom: {
    50: '#576472',
    500: '#172b3d',
    950: '#000000',
  },
}

SCSS

$custom: #172b3d;
$custom-light: #576472;
$custom-dark: #000000;

JSON

{
  "hex": "#172b3d",
  "rgb": {
    "r": 23,
    "g": 43,
    "b": 61
  },
  "hsl": {
    "h": 208.421,
    "s": 45.238,
    "l": 16.471
  },
  "oklch": {
    "l": 0.28127,
    "c": 0.04233,
    "h": 247.1
  },
  "luminance": 0.02247
}

Semantic roles & 50–950 ramp

primary

#172B3D

secondary

#74563C

accent

#9053D5

background

#F5F5F6

surface

#E9EAEC

border

#C5C6C7

text

#030508

muted

#78797B

Preview Lab

Preview with #172B3D

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

Preview Lab → · Contrast checker → · Palette generator →