#173B62#173B62

#173B62 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.8% C 0.080 H 252.7°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#173B62
RGB	rgb(23, 59, 98)
HSL	hsl(211, 62%, 24%)
HSV	hsv(211, 77%, 38%)
CMYK	cmyk(76.5%, 39.8%, 0%, 61.6%)
CIE-LAB	lab(24.29, 1.97, -26.80)
CIE-LCH	lch(24.29, 26.87, 274.21°)
OKLab	oklab(34.75% -0.0238 -0.0763)
OKLCH	oklch(34.75% 0.08 252.7)
XYZ	xyz(4.1211, 4.1915, 12.1447)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173B62 #623E17

analogous

#176062 #173B62 #181762

triadic

#173B62 #62173B #3B6217

tetradic

#173B62 #621760 #623E17 #176218

square

#173B62 #621760 #623E17 #176218

split-complementary

#173B62 #621817 #606217

monochromatic

#060F19 #0B1D30 #173B62 #235994 #2E77C5

Accessibility & contrast

On white

11.42

#173B62 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#173B62 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173B62

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173B62	#FFFFFF	#000000	##FFFFFF
##173B62	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293E64

Deuteranopia (green-blind)

#1E3761

Tritanopia (blue-blind)

#004449

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #173b62;
/* rgb */ color: rgb(23, 59, 98);
/* oklch */ color: oklch(34.8% 0.080 252.7);

Tailwind

colors: {
  custom: {
    50: '#5f708f',
    500: '#173b62',
    950: '#000000',
  },
}

SCSS

$custom: #173b62;
$custom-light: #5f708f;
$custom-dark: #000000;

JSON

{
  "hex": "#173b62",
  "rgb": {
    "r": 23,
    "g": 59,
    "b": 98
  },
  "hsl": {
    "h": 211.2,
    "s": 61.983,
    "l": 23.725
  },
  "oklch": {
    "l": 0.34752,
    "c": 0.07991,
    "h": 252.7
  },
  "luminance": 0.04192
}

Semantic roles & 50–950 ramp

primary

#173B62

secondary

#996C3C

accent

#9743E5

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #173B62

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

Preview Lab → · Contrast checker → · Palette generator →