#173140#173140

#173140 is a dark, muted cyan. Relative luminance 0.027; OKLCH L 30.0% C 0.042 H 235.8°. Best body text is #FFFFFF at 13.55:1 contrast (WCAG AA passes).

Color values

HEX	#173140
RGB	rgb(23, 49, 64)
HSL	hsl(202, 47%, 17%)
HSV	hsv(202, 64%, 25%)
CMYK	cmyk(64.1%, 23.4%, 0%, 74.9%)
CIE-LAB	lab(19.01, -4.68, -12.46)
CIE-LCH	lch(19.01, 13.31, 249.39°)
OKLab	oklab(29.98% -0.0236 -0.0348)
OKLCH	oklch(29.98% 0.042 235.8)
XYZ	xyz(2.3767, 2.7487, 5.2548)
Luminance	0.0275 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173140 #402617

analogous

#17403B #173140 #171D40

triadic

#173140 #401731 #314017

tetradic

#173140 #3B1740 #402617 #1D4017

square

#173140 #3B1740 #402617 #1D4017

split-complementary

#173140 #40171D #403B17

monochromatic

#081117 #081117 #173140 #27536D #37769A

Accessibility & contrast

On white

13.55

#173140 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#173140 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173140

13.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173140	#FFFFFF	#000000	##FFFFFF
##173140	1.00	13.55	1.55	13.55
#FFFFFF	13.55	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A3141

Deuteranopia (green-blind)

#242C40

Tritanopia (blue-blind)

#003536

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #173140;
/* rgb */ color: rgb(23, 49, 64);
/* oklch */ color: oklch(30.0% 0.042 235.8);

Tailwind

colors: {
  custom: {
    50: '#586974',
    500: '#173140',
    950: '#000000',
  },
}

SCSS

$custom: #173140;
$custom-light: #586974;
$custom-dark: #000000;

JSON

{
  "hex": "#173140",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 64
  },
  "hsl": {
    "h": 201.951,
    "s": 47.126,
    "l": 17.059
  },
  "oklch": {
    "l": 0.29977,
    "c": 0.04204,
    "h": 235.8
  },
  "luminance": 0.02749
}

Semantic roles & 50–950 ramp

primary

#173140

secondary

#77513C

accent

#8251D7

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030608

muted

#787A7B

Preview Lab

Preview with #173140

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

Preview Lab → · Contrast checker → · Palette generator →