#173A4C#173A4C

#173A4C is a dark, muted cyan. Relative luminance 0.037; OKLCH L 33.1% C 0.051 H 233.7°. Best body text is #FFFFFF at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#173A4C
RGB	rgb(23, 58, 76)
HSL	hsl(200, 54%, 19%)
HSV	hsv(200, 70%, 30%)
CMYK	cmyk(69.7%, 23.7%, 0%, 70.2%)
CIE-LAB	lab(22.76, -6.11, -14.75)
CIE-LCH	lch(22.76, 15.97, 247.52°)
OKLab	oklab(33.15% -0.0303 -0.0413)
OKLCH	oklch(33.15% 0.051 233.7)
XYZ	xyz(3.1704, 3.7298, 7.3889)
Luminance	0.0373 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173A4C #4C2917

analogous

#174C44 #173A4C #17204C

triadic

#173A4C #4C173A #3A4C17

tetradic

#173A4C #44174C #4C2917 #204C17

square

#173A4C #44174C #4C2917 #204C17

split-complementary

#173A4C #4C1720 #4C4417

monochromatic

#071217 #09161D #173A4C #255E7B #3382AA

Accessibility & contrast

On white

12.03

#173A4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#173A4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173A4C

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173A4C	#FFFFFF	#000000	##FFFFFF
##173A4C	1.00	12.03	1.75	12.03
#FFFFFF	12.03	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#31394D

Deuteranopia (green-blind)

#2A344C

Tritanopia (blue-blind)

#003F40

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #173a4c;
/* rgb */ color: rgb(23, 58, 76);
/* oklch */ color: oklch(33.1% 0.051 233.7);

Tailwind

colors: {
  custom: {
    50: '#5b707e',
    500: '#173a4c',
    950: '#000000',
  },
}

SCSS

$custom: #173a4c;
$custom-light: #5b707e;
$custom-dark: #000000;

JSON

{
  "hex": "#173a4c",
  "rgb": {
    "r": 23,
    "g": 58,
    "b": 76
  },
  "hsl": {
    "h": 200.377,
    "s": 53.535,
    "l": 19.412
  },
  "oklch": {
    "l": 0.33147,
    "c": 0.05126,
    "h": 233.7
  },
  "luminance": 0.0373
}

Semantic roles & 50–950 ramp

primary

#173A4C

secondary

#83543C

accent

#7C4BDD

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #173A4C

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

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