#173E60#173E60

#173E60 is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.4% C 0.074 H 248.0°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#173E60
RGB	rgb(23, 62, 96)
HSL	hsl(208, 61%, 23%)
HSV	hsv(208, 76%, 38%)
CMYK	cmyk(76%, 35.4%, 0%, 62.4%)
CIE-LAB	lab(25.17, -0.89, -24.11)
CIE-LCH	lch(25.17, 24.13, 267.89°)
OKLab	oklab(35.4% -0.0277 -0.0684)
OKLCH	oklch(35.4% 0.074 248)
XYZ	xyz(4.1865, 4.4715, 11.7065)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173E60 #603917

analogous

#17605D #173E60 #171960

triadic

#173E60 #60173E #3E6017

tetradic

#173E60 #5D1760 #603917 #196017

square

#173E60 #5D1760 #603917 #196017

split-complementary

#173E60 #601719 #605D17

monochromatic

#061019 #0B1E2F #173E60 #235E91 #2F7EC3

Accessibility & contrast

On white

11.09

#173E60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#173E60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173E60

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173E60	#FFFFFF	#000000	##FFFFFF
##173E60	1.00	11.09	1.89	11.09
#FFFFFF	11.09	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3F61

Deuteranopia (green-blind)

#24395F

Tritanopia (blue-blind)

#00464A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #173e60;
/* rgb */ color: rgb(23, 62, 96);
/* oklch */ color: oklch(35.4% 0.074 248.0);

Tailwind

colors: {
  custom: {
    50: '#5f738d',
    500: '#173e60',
    950: '#000000',
  },
}

SCSS

$custom: #173e60;
$custom-light: #5f738d;
$custom-dark: #000000;

JSON

{
  "hex": "#173e60",
  "rgb": {
    "r": 23,
    "g": 62,
    "b": 96
  },
  "hsl": {
    "h": 207.945,
    "s": 61.345,
    "l": 23.333
  },
  "oklch": {
    "l": 0.35403,
    "c": 0.07377,
    "h": 248
  },
  "luminance": 0.04472
}

Semantic roles & 50–950 ramp

primary

#173E60

secondary

#97663C

accent

#8E43E4

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #173E60

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

Preview Lab → · Contrast checker → · Palette generator →