#173D70#173D70

#173D70 is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 36.2% C 0.098 H 256.9°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#173D70
RGB	rgb(23, 61, 112)
HSL	hsl(214, 66%, 26%)
HSV	hsv(214, 79%, 44%)
CMYK	cmyk(79.5%, 45.5%, 0%, 56.1%)
CIE-LAB	lab(25.83, 6.37, -33.36)
CIE-LCH	lch(25.83, 33.96, 280.81°)
OKLab	oklab(36.24% -0.0223 -0.0955)
OKLCH	oklch(36.24% 0.098 256.9)
XYZ	xyz(4.9456, 4.6889, 15.9705)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173D70 #704A17

analogous

#176A70 #173D70 #1E1770

triadic

#173D70 #70173D #3D7017

tetradic

#173D70 #70176A #704A17 #17701E

square

#173D70 #70176A #704A17 #17701E

split-complementary

#173D70 #701E17 #6A7017

monochromatic

#050E19 #0D213D #173D70 #2159A3 #2D75D4

Accessibility & contrast

On white

10.84

#173D70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#173D70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173D70

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173D70	#FFFFFF	#000000	##FFFFFF
##173D70	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#244272

Deuteranopia (green-blind)

#13396F

Tritanopia (blue-blind)

#004951

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #173d70;
/* rgb */ color: rgb(23, 61, 112);
/* oklch */ color: oklch(36.2% 0.098 256.9);

Tailwind

colors: {
  custom: {
    50: '#627299',
    500: '#173d70',
    950: '#000000',
  },
}

SCSS

$custom: #173d70;
$custom-light: #627299;
$custom-dark: #000000;

JSON

{
  "hex": "#173d70",
  "rgb": {
    "r": 23,
    "g": 61,
    "b": 112
  },
  "hsl": {
    "h": 214.382,
    "s": 65.926,
    "l": 26.471
  },
  "oklch": {
    "l": 0.36235,
    "c": 0.09806,
    "h": 256.9
  },
  "luminance": 0.04689
}

Semantic roles & 50–950 ramp

primary

#173D70

secondary

#A6793D

accent

#A03FE9

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #173D70

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

Preview Lab → · Contrast checker → · Palette generator →