#172C40#172C40

#172C40 is a dark, muted cyan. Relative luminance 0.024; OKLCH L 28.6% C 0.046 H 248.6°. Best body text is #FFFFFF at 14.28:1 contrast (WCAG AA passes).

Color values

HEX	#172C40
RGB	rgb(23, 44, 64)
HSL	hsl(209, 47%, 17%)
HSV	hsv(209, 64%, 25%)
CMYK	cmyk(64.1%, 31.2%, 0%, 74.9%)
CIE-LAB	lab(17.24, -1.25, -15.20)
CIE-LCH	lch(17.24, 15.25, 265.31°)
OKLab	oklab(28.58% -0.0167 -0.0427)
OKLCH	oklch(28.58% 0.046 248.6)
XYZ	xyz(2.1791, 2.3535, 5.1889)
Luminance	0.0235 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172C40 #402B17

analogous

#174040 #172C40 #171840

triadic

#172C40 #40172C #2C4017

tetradic

#172C40 #401740 #402B17 #184017

square

#172C40 #401740 #402B17 #184017

split-complementary

#172C40 #401718 #404017

monochromatic

#080F17 #080F17 #172C40 #274B6D #376A9A

Accessibility & contrast

On white

14.28

#172C40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#172C40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172C40

14.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172C40	#FFFFFF	#000000	##FFFFFF
##172C40	1.00	14.28	1.47	14.28
#FFFFFF	14.28	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#242D41

Deuteranopia (green-blind)

#1E2940

Tritanopia (blue-blind)

#003133

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #172c40;
/* rgb */ color: rgb(23, 44, 64);
/* oklch */ color: oklch(28.6% 0.046 248.6);

Tailwind

colors: {
  custom: {
    50: '#586475',
    500: '#172c40',
    950: '#000000',
  },
}

SCSS

$custom: #172c40;
$custom-light: #586475;
$custom-dark: #000000;

JSON

{
  "hex": "#172c40",
  "rgb": {
    "r": 23,
    "g": 44,
    "b": 64
  },
  "hsl": {
    "h": 209.268,
    "s": 47.126,
    "l": 17.059
  },
  "oklch": {
    "l": 0.28582,
    "c": 0.04583,
    "h": 248.6
  },
  "luminance": 0.02354
}

Semantic roles & 50–950 ramp

primary

#172C40

secondary

#77593C

accent

#9251D7

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030508

muted

#787A7B

Preview Lab

Preview with #172C40

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

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