#172F40#172F40

#172F40 is a dark, muted cyan. Relative luminance 0.026; OKLCH L 29.4% C 0.043 H 241.2°. Best body text is #FFFFFF at 13.84:1 contrast (WCAG AA passes).

Color values

HEX	#172F40
RGB	rgb(23, 47, 64)
HSL	hsl(205, 47%, 17%)
HSV	hsv(205, 64%, 25%)
CMYK	cmyk(64.1%, 26.6%, 0%, 74.9%)
CIE-LAB	lab(18.30, -3.33, -13.55)
CIE-LCH	lch(18.30, 13.96, 256.20°)
OKLab	oklab(29.42% -0.0209 -0.0379)
OKLCH	oklch(29.42% 0.043 241.2)
XYZ	xyz(2.2949, 2.5852, 5.2275)
Luminance	0.0259 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F40 #402817

analogous

#17403D #172F40 #171B40

triadic

#172F40 #40172F #2F4017

tetradic

#172F40 #3D1740 #402817 #1B4017

square

#172F40 #3D1740 #402817 #1B4017

split-complementary

#172F40 #40171B #403D17

monochromatic

#081117 #081117 #172F40 #27506D #37719A

Accessibility & contrast

On white

13.84

#172F40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#172F40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F40

13.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F40	#FFFFFF	#000000	##FFFFFF
##172F40	1.00	13.84	1.52	13.84
#FFFFFF	13.84	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#272F41

Deuteranopia (green-blind)

#222B40

Tritanopia (blue-blind)

#003335

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #172f40;
/* rgb */ color: rgb(23, 47, 64);
/* oklch */ color: oklch(29.4% 0.043 241.2);

Tailwind

colors: {
  custom: {
    50: '#586775',
    500: '#172f40',
    950: '#000000',
  },
}

SCSS

$custom: #172f40;
$custom-light: #586775;
$custom-dark: #000000;

JSON

{
  "hex": "#172f40",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 64
  },
  "hsl": {
    "h": 204.878,
    "s": 47.126,
    "l": 17.059
  },
  "oklch": {
    "l": 0.29415,
    "c": 0.04328,
    "h": 241.2
  },
  "luminance": 0.02585
}

Semantic roles & 50–950 ramp

primary

#172F40

secondary

#77543C

accent

#8851D7

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030608

muted

#787A7B

Preview Lab

Preview with #172F40

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

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