#173A48#173A48

#173A48 is a dark, muted cyan. Relative luminance 0.037; OKLCH L 32.9% C 0.047 H 227.1°. Best body text is #FFFFFF at 12.10:1 contrast (WCAG AA passes).

Color values

HEX	#173A48
RGB	rgb(23, 58, 72)
HSL	hsl(197, 52%, 19%)
HSV	hsv(197, 68%, 28%)
CMYK	cmyk(68.1%, 19.4%, 0%, 71.8%)
CIE-LAB	lab(22.57, -7.61, -12.38)
CIE-LCH	lch(22.57, 14.53, 238.42°)
OKLab	oklab(32.93% -0.0321 -0.0345)
OKLCH	oklch(32.93% 0.047 227.1)
XYZ	xyz(3.0356, 3.6758, 6.6792)
Luminance	0.0368 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173A48 #482517

analogous

#17483D #173A48 #172148

triadic

#173A48 #48173A #3A4817

tetradic

#173A48 #3D1748 #482517 #214817

square

#173A48 #3D1748 #482517 #214817

split-complementary

#173A48 #481721 #483D17

monochromatic

#071317 #08151A #173A48 #265F76 #3585A5

Accessibility & contrast

On white

12.10

#173A48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#173A48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173A48

12.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173A48	#FFFFFF	#000000	##FFFFFF
##173A48	1.00	12.10	1.74	12.10
#FFFFFF	12.10	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333949

Deuteranopia (green-blind)

#2C3448

Tritanopia (blue-blind)

#003E3F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #173a48;
/* rgb */ color: rgb(23, 58, 72);
/* oklch */ color: oklch(32.9% 0.047 227.1);

Tailwind

colors: {
  custom: {
    50: '#5a707b',
    500: '#173a48',
    950: '#000000',
  },
}

SCSS

$custom: #173a48;
$custom-light: #5a707b;
$custom-dark: #000000;

JSON

{
  "hex": "#173a48",
  "rgb": {
    "r": 23,
    "g": 58,
    "b": 72
  },
  "hsl": {
    "h": 197.143,
    "s": 51.579,
    "l": 18.627
  },
  "oklch": {
    "l": 0.32935,
    "c": 0.04712,
    "h": 227.1
  },
  "luminance": 0.03676
}

Semantic roles & 50–950 ramp

primary

#173A48

secondary

#7F4F3C

accent

#754DDB

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#040709

muted

#797A7B

Preview Lab

Preview with #173A48

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

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