#172B3E#172B3E

#172B3E is a dark, muted cyan. Relative luminance 0.023; OKLCH L 28.2% C 0.044 H 248.4°. Best body text is #FFFFFF at 14.47:1 contrast (WCAG AA passes).

Color values

HEX	#172B3E
RGB	rgb(23, 43, 62)
HSL	hsl(209, 46%, 17%)
HSV	hsv(209, 63%, 24%)
CMYK	cmyk(62.9%, 30.6%, 0%, 75.7%)
CIE-LAB	lab(16.78, -1.31, -14.53)
CIE-LCH	lch(16.78, 14.59, 264.83°)
OKLab	oklab(28.19% -0.0161 -0.0407)
OKLCH	oklch(28.19% 0.044 248.4)
XYZ	xyz(2.0864, 2.2575, 4.8823)
Luminance	0.0226 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172B3E #3E2A17

analogous

#173E3E #172B3E #17183E

triadic

#172B3E #3E172B #2B3E17

tetradic

#172B3E #3E173E #3E2A17 #183E17

square

#172B3E #3E173E #3E2A17 #183E17

split-complementary

#172B3E #3E1718 #3E3E17

monochromatic

#080F16 #080F16 #172B3E #284A6B #386997

Accessibility & contrast

On white

14.47

#172B3E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#172B3E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172B3E

14.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172B3E	#FFFFFF	#000000	##FFFFFF
##172B3E	1.00	14.47	1.45	14.47
#FFFFFF	14.47	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#232C3F

Deuteranopia (green-blind)

#1E283E

Tritanopia (blue-blind)

#012F32

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #172b3e;
/* rgb */ color: rgb(23, 43, 62);
/* oklch */ color: oklch(28.2% 0.044 248.4);

Tailwind

colors: {
  custom: {
    50: '#586473',
    500: '#172b3e',
    950: '#000000',
  },
}

SCSS

$custom: #172b3e;
$custom-light: #586473;
$custom-dark: #000000;

JSON

{
  "hex": "#172b3e",
  "rgb": {
    "r": 23,
    "g": 43,
    "b": 62
  },
  "hsl": {
    "h": 209.231,
    "s": 45.882,
    "l": 16.667
  },
  "oklch": {
    "l": 0.28186,
    "c": 0.04382,
    "h": 248.4
  },
  "luminance": 0.02258
}

Semantic roles & 50–950 ramp

primary

#172B3E

secondary

#75583C

accent

#9252D6

background

#F5F5F7

surface

#E9EAED

border

#C5C6C8

text

#030508

muted

#78797B

Preview Lab

Preview with #172B3E

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

Preview Lab → · Contrast checker → · Palette generator →