#173A45#173A45

#173A45 is a dark, muted cyan. Relative luminance 0.036; OKLCH L 32.8% C 0.045 H 221.3°. Best body text is #FFFFFF at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#173A45
RGB	rgb(23, 58, 69)
HSL	hsl(194, 50%, 18%)
HSV	hsv(194, 67%, 27%)
CMYK	cmyk(66.7%, 15.9%, 0%, 72.9%)
CIE-LAB	lab(22.44, -8.71, -10.58)
CIE-LCH	lch(22.44, 13.70, 230.52°)
OKLab	oklab(32.78% -0.0334 -0.0294)
OKLCH	oklch(32.78% 0.045 221.3)
XYZ	xyz(2.9402, 3.6377, 6.1763)
Luminance	0.0364 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173A45 #452217

analogous

#174539 #173A45 #172345

triadic

#173A45 #45173A #3A4517

tetradic

#173A45 #391745 #452217 #234517

square

#173A45 #391745 #452217 #234517

split-complementary

#173A45 #451723 #453917

monochromatic

#081317 #081317 #173A45 #266173 #3687A1

Accessibility & contrast

On white

12.16

#173A45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#173A45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173A45

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173A45	#FFFFFF	#000000	##FFFFFF
##173A45	1.00	12.16	1.73	12.16
#FFFFFF	12.16	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333846

Deuteranopia (green-blind)

#2D3345

Tritanopia (blue-blind)

#003E3D

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #173a45;
/* rgb */ color: rgb(23, 58, 69);
/* oklch */ color: oklch(32.8% 0.045 221.3);

Tailwind

colors: {
  custom: {
    50: '#5a7078',
    500: '#173a45',
    950: '#000000',
  },
}

SCSS

$custom: #173a45;
$custom-light: #5a7078;
$custom-dark: #000000;

JSON

{
  "hex": "#173a45",
  "rgb": {
    "r": 23,
    "g": 58,
    "b": 69
  },
  "hsl": {
    "h": 194.348,
    "s": 50,
    "l": 18.039
  },
  "oklch": {
    "l": 0.32784,
    "c": 0.04453,
    "h": 221.3
  },
  "luminance": 0.03638
}

Semantic roles & 50–950 ramp

primary

#173A45

secondary

#7C4B3C

accent

#704EDA

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#040709

muted

#797A7B

Preview Lab

Preview with #173A45

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

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