#172A3D#172A3D

#172A3D is a dark, muted cyan. Relative luminance 0.022; OKLCH L 27.9% C 0.043 H 249.6°. Best body text is #FFFFFF at 14.63:1 contrast (WCAG AA passes).

Color values

HEX	#172A3D
RGB	rgb(23, 42, 61)
HSL	hsl(210, 45%, 16%)
HSV	hsv(210, 62%, 24%)
CMYK	cmyk(62.3%, 31.1%, 0%, 76.1%)
CIE-LAB	lab(16.38, -0.99, -14.47)
CIE-LCH	lch(16.38, 14.50, 266.08°)
OKLab	oklab(27.85% -0.0151 -0.0406)
OKLCH	oklch(27.85% 0.043 249.6)
XYZ	xyz(2.0233, 2.1748, 4.7271)
Luminance	0.0217 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172A3D #3D2A17

analogous

#173D3D #172A3D #17173D

triadic

#172A3D #3D172A #2A3D17

tetradic

#172A3D #3D173D #3D2A17 #173D17

square

#172A3D #3D173D #3D2A17 #173D17

split-complementary

#172A3D #3D1717 #3D3D17

monochromatic

#080F16 #080F16 #172A3D #284969 #396796

Accessibility & contrast

On white

14.63

#172A3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#172A3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172A3D

14.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172A3D	#FFFFFF	#000000	##FFFFFF
##172A3D	1.00	14.63	1.44	14.63
#FFFFFF	14.63	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#222B3E

Deuteranopia (green-blind)

#1D273D

Tritanopia (blue-blind)

#022E31

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #172a3d;
/* rgb */ color: rgb(23, 42, 61);
/* oklch */ color: oklch(27.9% 0.043 249.6);

Tailwind

colors: {
  custom: {
    50: '#576372',
    500: '#172a3d',
    950: '#000000',
  },
}

SCSS

$custom: #172a3d;
$custom-light: #576372;
$custom-dark: #000000;

JSON

{
  "hex": "#172a3d",
  "rgb": {
    "r": 23,
    "g": 42,
    "b": 61
  },
  "hsl": {
    "h": 210,
    "s": 45.238,
    "l": 16.471
  },
  "oklch": {
    "l": 0.2785,
    "c": 0.04329,
    "h": 249.6
  },
  "luminance": 0.02175
}

Semantic roles & 50–950 ramp

primary

#172A3D

secondary

#74583C

accent

#9453D5

background

#F5F5F6

surface

#E9EAEC

border

#C5C6C7

text

#030508

muted

#78797B

Preview Lab

Preview with #172A3D

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

Preview Lab → · Contrast checker → · Palette generator →