#173E70#173E70

#173E70 is a dark, moderate cyan. Relative luminance 0.048; OKLCH L 36.5% C 0.097 H 256.1°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#173E70
RGB	rgb(23, 62, 112)
HSL	hsl(214, 66%, 26%)
HSV	hsv(214, 79%, 44%)
CMYK	cmyk(79.5%, 44.6%, 0%, 56.1%)
CIE-LAB	lab(26.15, 5.67, -32.85)
CIE-LCH	lch(26.15, 33.33, 279.79°)
OKLab	oklab(36.48% -0.0232 -0.094)
OKLCH	oklch(36.48% 0.097 256.1)
XYZ	xyz(4.9995, 4.7967, 15.9885)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173E70 #704917

analogous

#176B70 #173E70 #1D1770

triadic

#173E70 #70173E #3E7017

tetradic

#173E70 #70176B #704917 #17701D

square

#173E70 #70176B #704917 #17701D

split-complementary

#173E70 #701D17 #6B7017

monochromatic

#050E19 #0D223D #173E70 #215AA3 #2D76D4

Accessibility & contrast

On white

10.72

#173E70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#173E70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173E70

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173E70	#FFFFFF	#000000	##FFFFFF
##173E70	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254272

Deuteranopia (green-blind)

#153A6F

Tritanopia (blue-blind)

#004A51

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #173e70;
/* rgb */ color: rgb(23, 62, 112);
/* oklch */ color: oklch(36.5% 0.097 256.1);

Tailwind

colors: {
  custom: {
    50: '#627299',
    500: '#173e70',
    950: '#000000',
  },
}

SCSS

$custom: #173e70;
$custom-light: #627299;
$custom-dark: #000000;

JSON

{
  "hex": "#173e70",
  "rgb": {
    "r": 23,
    "g": 62,
    "b": 112
  },
  "hsl": {
    "h": 213.708,
    "s": 65.926,
    "l": 26.471
  },
  "oklch": {
    "l": 0.36481,
    "c": 0.09681,
    "h": 256.1
  },
  "luminance": 0.04797
}

Semantic roles & 50–950 ramp

primary

#173E70

secondary

#A6783D

accent

#9E3FE9

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #173E70

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

Preview Lab → · Contrast checker → · Palette generator →