#172A40#172A40

#172A40 is a dark, muted cyan. Relative luminance 0.022; OKLCH L 28.0% C 0.048 H 253.1°. Best body text is #FFFFFF at 14.57:1 contrast (WCAG AA passes).

Color values

HEX	#172A40
RGB	rgb(23, 42, 64)
HSL	hsl(212, 47%, 17%)
HSV	hsv(212, 64%, 25%)
CMYK	cmyk(64.1%, 34.4%, 0%, 74.9%)
CIE-LAB	lab(16.54, 0.17, -16.29)
CIE-LCH	lch(16.54, 16.29, 270.60°)
OKLab	oklab(28.03% -0.014 -0.0458)
OKLCH	oklch(28.03% 0.048 253.1)
XYZ	xyz(2.1064, 2.2081, 5.1647)
Luminance	0.0221 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172A40 #402D17

analogous

#173F40 #172A40 #191740

triadic

#172A40 #40172A #2A4017

tetradic

#172A40 #40173F #402D17 #174019

square

#172A40 #40173F #402D17 #174019

split-complementary

#172A40 #401917 #3F4017

monochromatic

#080F17 #080F17 #172A40 #27486D #37659A

Accessibility & contrast

On white

14.57

#172A40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#172A40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172A40

14.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172A40	#FFFFFF	#000000	##FFFFFF
##172A40	1.00	14.57	1.44	14.57
#FFFFFF	14.57	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#212B41

Deuteranopia (green-blind)

#1C2740

Tritanopia (blue-blind)

#002F32

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #172a40;
/* rgb */ color: rgb(23, 42, 64);
/* oklch */ color: oklch(28.0% 0.048 253.1);

Tailwind

colors: {
  custom: {
    50: '#586375',
    500: '#172a40',
    950: '#000000',
  },
}

SCSS

$custom: #172a40;
$custom-light: #586375;
$custom-dark: #000000;

JSON

{
  "hex": "#172a40",
  "rgb": {
    "r": 23,
    "g": 42,
    "b": 64
  },
  "hsl": {
    "h": 212.195,
    "s": 47.126,
    "l": 17.059
  },
  "oklch": {
    "l": 0.28032,
    "c": 0.04793,
    "h": 253.1
  },
  "luminance": 0.02208
}

Semantic roles & 50–950 ramp

primary

#172A40

secondary

#775C3C

accent

#9951D7

background

#F5F5F7

surface

#E9EAED

border

#C5C6C8

text

#030508

muted

#78797B

Preview Lab

Preview with #172A40

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

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