#173E4D#173E4D

#173E4D is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.3% C 0.051 H 226.5°. Best body text is #FFFFFF at 11.46:1 contrast (WCAG AA passes).

Color values

HEX	#173E4D
RGB	rgb(23, 62, 77)
HSL	hsl(197, 54%, 20%)
HSV	hsv(197, 70%, 30%)
CMYK	cmyk(70.1%, 19.5%, 0%, 69.8%)
CIE-LAB	lab(24.20, -8.30, -13.19)
CIE-LCH	lch(24.20, 15.58, 237.82°)
OKLab	oklab(34.32% -0.0349 -0.0368)
OKLCH	oklch(34.32% 0.051 226.5)
XYZ	xyz(3.4150, 4.1629, 7.6433)
Luminance	0.0416 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173E4D #4D2617

analogous

#174D41 #173E4D #17234D

triadic

#173E4D #4D173E #3E4D17

tetradic

#173E4D #41174D #4D2617 #234D17

square

#173E4D #41174D #4D2617 #234D17

split-complementary

#173E4D #4D1723 #4D4117

monochromatic

#071318 #09181E #173E4D #25647C #338AAB

Accessibility & contrast

On white

11.46

#173E4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#173E4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173E4D

11.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173E4D	#FFFFFF	#000000	##FFFFFF
##173E4D	1.00	11.46	1.83	11.46
#FFFFFF	11.46	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363D4E

Deuteranopia (green-blind)

#2E374D

Tritanopia (blue-blind)

#004243

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #173e4d;
/* rgb */ color: rgb(23, 62, 77);
/* oklch */ color: oklch(34.3% 0.051 226.5);

Tailwind

colors: {
  custom: {
    50: '#5b737e',
    500: '#173e4d',
    950: '#000000',
  },
}

SCSS

$custom: #173e4d;
$custom-light: #5b737e;
$custom-dark: #000000;

JSON

{
  "hex": "#173e4d",
  "rgb": {
    "r": 23,
    "g": 62,
    "b": 77
  },
  "hsl": {
    "h": 196.667,
    "s": 54,
    "l": 19.608
  },
  "oklch": {
    "l": 0.34315,
    "c": 0.05076,
    "h": 226.5
  },
  "luminance": 0.04163
}

Semantic roles & 50–950 ramp

primary

#173E4D

secondary

#84503C

accent

#734ADD

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #173E4D

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

Preview Lab → · Contrast checker → · Palette generator →