#172B42#172B42

#172B42 is a dark, muted cyan. Relative luminance 0.023; OKLCH L 28.4% C 0.050 H 253.0°. Best body text is #FFFFFF at 14.38:1 contrast (WCAG AA passes).

Color values

HEX	#172B42
RGB	rgb(23, 43, 66)
HSL	hsl(212, 48%, 17%)
HSV	hsv(212, 65%, 26%)
CMYK	cmyk(65.2%, 34.8%, 0%, 74.1%)
CIE-LAB	lab(17.00, 0.24, -16.95)
CIE-LCH	lch(17.00, 16.95, 270.82°)
OKLab	oklab(28.43% -0.0146 -0.0477)
OKLCH	oklch(28.43% 0.05 253)
XYZ	xyz(2.2002, 2.3031, 5.4818)
Luminance	0.0230 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172B42 #422E17

analogous

#174142 #172B42 #181742

triadic

#172B42 #42172B #2B4217

tetradic

#172B42 #421741 #422E17 #174218

square

#172B42 #421741 #422E17 #174218

split-complementary

#172B42 #421817 #414217

monochromatic

#080F17 #080F17 #172B42 #27496F #37669D

Accessibility & contrast

On white

14.38

#172B42 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#172B42 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172B42

14.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172B42	#FFFFFF	#000000	##FFFFFF
##172B42	1.00	14.38	1.46	14.38
#FFFFFF	14.38	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#212C43

Deuteranopia (green-blind)

#1C2842

Tritanopia (blue-blind)

#003033

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #172b42;
/* rgb */ color: rgb(23, 43, 66);
/* oklch */ color: oklch(28.4% 0.050 253.0);

Tailwind

colors: {
  custom: {
    50: '#586476',
    500: '#172b42',
    950: '#000000',
  },
}

SCSS

$custom: #172b42;
$custom-light: #586476;
$custom-dark: #000000;

JSON

{
  "hex": "#172b42",
  "rgb": {
    "r": 23,
    "g": 43,
    "b": 66
  },
  "hsl": {
    "h": 212.093,
    "s": 48.315,
    "l": 17.451
  },
  "oklch": {
    "l": 0.2843,
    "c": 0.04994,
    "h": 253
  },
  "luminance": 0.02303
}

Semantic roles & 50–950 ramp

primary

#172B42

secondary

#795D3C

accent

#9950D8

background

#F5F5F7

surface

#E9EAED

border

#C5C6C8

text

#030508

muted

#78797B

Preview Lab

Preview with #172B42

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

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