#173D4D#173D4D

#173D4D is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.0% C 0.051 H 228.7°. Best body text is #FFFFFF at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#173D4D
RGB	rgb(23, 61, 77)
HSL	hsl(198, 54%, 20%)
HSV	hsv(198, 70%, 30%)
CMYK	cmyk(70.1%, 20.8%, 0%, 69.8%)
CIE-LAB	lab(23.85, -7.66, -13.73)
CIE-LCH	lch(23.85, 15.72, 240.83°)
OKLab	oklab(34.03% -0.0337 -0.0384)
OKLCH	oklch(34.03% 0.051 228.7)
XYZ	xyz(3.3611, 4.0551, 7.6253)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173D4D #4D2717

analogous

#174D42 #173D4D #17224D

triadic

#173D4D #4D173D #3D4D17

tetradic

#173D4D #42174D #4D2717 #224D17

square

#173D4D #42174D #4D2717 #224D17

split-complementary

#173D4D #4D1722 #4D4217

monochromatic

#071318 #09181E #173D4D #25627C #3388AB

Accessibility & contrast

On white

11.60

#173D4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#173D4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173D4D

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173D4D	#FFFFFF	#000000	##FFFFFF
##173D4D	1.00	11.60	1.81	11.60
#FFFFFF	11.60	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353C4E

Deuteranopia (green-blind)

#2D364D

Tritanopia (blue-blind)

#004242

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #173d4d;
/* rgb */ color: rgb(23, 61, 77);
/* oklch */ color: oklch(34.0% 0.051 228.7);

Tailwind

colors: {
  custom: {
    50: '#5b727e',
    500: '#173d4d',
    950: '#000000',
  },
}

SCSS

$custom: #173d4d;
$custom-light: #5b727e;
$custom-dark: #000000;

JSON

{
  "hex": "#173d4d",
  "rgb": {
    "r": 23,
    "g": 61,
    "b": 77
  },
  "hsl": {
    "h": 197.778,
    "s": 54,
    "l": 19.608
  },
  "oklch": {
    "l": 0.34035,
    "c": 0.05105,
    "h": 228.7
  },
  "luminance": 0.04055
}

Semantic roles & 50–950 ramp

primary

#173D4D

secondary

#84513C

accent

#764ADD

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #173D4D

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

Preview Lab → · Contrast checker → · Palette generator →