#173D60#173D60

#173D60 is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.1% C 0.075 H 249.2°. Best body text is #FFFFFF at 11.21:1 contrast (WCAG AA passes).

Color values

HEX	#173D60
RGB	rgb(23, 61, 96)
HSL	hsl(209, 61%, 23%)
HSV	hsv(209, 76%, 38%)
CMYK	cmyk(76%, 36.5%, 0%, 62.4%)
CIE-LAB	lab(24.84, -0.21, -24.64)
CIE-LCH	lch(24.84, 24.64, 269.51°)
OKLab	oklab(35.14% -0.0266 -0.0699)
OKLCH	oklch(35.14% 0.075 249.2)
XYZ	xyz(4.1326, 4.3637, 11.6885)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173D60 #603A17

analogous

#17605E #173D60 #171860

triadic

#173D60 #60173D #3D6017

tetradic

#173D60 #5E1760 #603A17 #186017

square

#173D60 #5E1760 #603A17 #186017

split-complementary

#173D60 #601718 #605E17

monochromatic

#061019 #0B1E2F #173D60 #235C91 #2F7CC3

Accessibility & contrast

On white

11.21

#173D60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#173D60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173D60

11.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173D60	#FFFFFF	#000000	##FFFFFF
##173D60	1.00	11.21	1.87	11.21
#FFFFFF	11.21	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3F61

Deuteranopia (green-blind)

#23385F

Tritanopia (blue-blind)

#00454A

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #173d60;
/* rgb */ color: rgb(23, 61, 96);
/* oklch */ color: oklch(35.1% 0.075 249.2);

Tailwind

colors: {
  custom: {
    50: '#5f728d',
    500: '#173d60',
    950: '#000000',
  },
}

SCSS

$custom: #173d60;
$custom-light: #5f728d;
$custom-dark: #000000;

JSON

{
  "hex": "#173d60",
  "rgb": {
    "r": 23,
    "g": 61,
    "b": 96
  },
  "hsl": {
    "h": 208.767,
    "s": 61.345,
    "l": 23.333
  },
  "oklch": {
    "l": 0.35141,
    "c": 0.07481,
    "h": 249.2
  },
  "luminance": 0.04364
}

Semantic roles & 50–950 ramp

primary

#173D60

secondary

#97683C

accent

#9143E4

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #173D60

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

Preview Lab → · Contrast checker → · Palette generator →