#173541#173541

#173541 is a dark, muted cyan. Relative luminance 0.031; OKLCH L 31.2% C 0.042 H 226.6°. Best body text is #FFFFFF at 12.95:1 contrast (WCAG AA passes).

Color values

HEX	#173541
RGB	rgb(23, 53, 65)
HSL	hsl(197, 48%, 17%)
HSV	hsv(197, 65%, 25%)
CMYK	cmyk(64.6%, 18.5%, 0%, 74.5%)
CIE-LAB	lab(20.48, -6.96, -10.88)
CIE-LCH	lch(20.48, 12.92, 237.37°)
OKLab	oklab(31.16% -0.0286 -0.0303)
OKLCH	oklch(31.16% 0.042 226.6)
XYZ	xyz(2.5802, 3.1098, 5.4643)
Luminance	0.0311 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173541 #412317

analogous

#174138 #173541 #172041

triadic

#173541 #411735 #354117

tetradic

#173541 #381741 #412317 #204117

square

#173541 #381741 #412317 #204117

split-complementary

#173541 #411720 #413817

monochromatic

#081217 #081217 #173541 #275A6E #377F9B

Accessibility & contrast

On white

12.95

#173541 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#173541 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173541

12.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173541	#FFFFFF	#000000	##FFFFFF
##173541	1.00	12.95	1.62	12.95
#FFFFFF	12.95	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3442

Deuteranopia (green-blind)

#292F41

Tritanopia (blue-blind)

#003939

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #173541;
/* rgb */ color: rgb(23, 53, 65);
/* oklch */ color: oklch(31.2% 0.042 226.6);

Tailwind

colors: {
  custom: {
    50: '#596c75',
    500: '#173541',
    950: '#000000',
  },
}

SCSS

$custom: #173541;
$custom-light: #596c75;
$custom-dark: #000000;

JSON

{
  "hex": "#173541",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 65
  },
  "hsl": {
    "h": 197.143,
    "s": 47.727,
    "l": 17.255
  },
  "oklch": {
    "l": 0.31162,
    "c": 0.04166,
    "h": 226.6
  },
  "luminance": 0.0311
}

Semantic roles & 50–950 ramp

primary

#173541

secondary

#784D3C

accent

#7750D7

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#040608

muted

#797A7B

Preview Lab

Preview with #173541

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

Preview Lab → · Contrast checker → · Palette generator →