#173240#173240

#173240 is a dark, muted cyan. Relative luminance 0.028; OKLCH L 30.3% C 0.042 H 233.0°. Best body text is #FFFFFF at 13.40:1 contrast (WCAG AA passes).

Color values

HEX	#173240
RGB	rgb(23, 50, 64)
HSL	hsl(200, 47%, 17%)
HSV	hsv(200, 64%, 25%)
CMYK	cmyk(64.1%, 21.9%, 0%, 74.9%)
CIE-LAB	lab(19.36, -5.36, -11.91)
CIE-LCH	lch(19.36, 13.06, 245.79°)
OKLab	oklab(30.26% -0.025 -0.0332)
OKLCH	oklch(30.26% 0.042 233)
XYZ	xyz(2.4190, 2.8333, 5.2689)
Luminance	0.0283 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173240 #402517

analogous

#17403A #173240 #171E40

triadic

#173240 #401732 #324017

tetradic

#173240 #3A1740 #402517 #1E4017

square

#173240 #3A1740 #402517 #1E4017

split-complementary

#173240 #40171E #403A17

monochromatic

#081217 #081217 #173240 #27556D #37789A

Accessibility & contrast

On white

13.40

#173240 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#173240 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173240

13.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173240	#FFFFFF	#000000	##FFFFFF
##173240	1.00	13.40	1.57	13.40
#FFFFFF	13.40	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3141

Deuteranopia (green-blind)

#252D40

Tritanopia (blue-blind)

#003637

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #173240;
/* rgb */ color: rgb(23, 50, 64);
/* oklch */ color: oklch(30.3% 0.042 233.0);

Tailwind

colors: {
  custom: {
    50: '#586974',
    500: '#173240',
    950: '#000000',
  },
}

SCSS

$custom: #173240;
$custom-light: #586974;
$custom-dark: #000000;

JSON

{
  "hex": "#173240",
  "rgb": {
    "r": 23,
    "g": 50,
    "b": 64
  },
  "hsl": {
    "h": 200.488,
    "s": 47.126,
    "l": 17.059
  },
  "oklch": {
    "l": 0.30259,
    "c": 0.04156,
    "h": 233
  },
  "luminance": 0.02834
}

Semantic roles & 50–950 ramp

primary

#173240

secondary

#77503C

accent

#7F51D7

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030608

muted

#787A7B

Preview Lab

Preview with #173240

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

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