#173E6F#173E6F

#173E6F is a dark, moderate cyan. Relative luminance 0.048; OKLCH L 36.4% C 0.095 H 255.7°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#173E6F
RGB	rgb(23, 62, 111)
HSL	hsl(213, 66%, 26%)
HSV	hsv(213, 79%, 44%)
CMYK	cmyk(79.3%, 44.1%, 0%, 56.5%)
CIE-LAB	lab(26.08, 5.26, -32.31)
CIE-LCH	lch(26.08, 32.74, 279.24°)
OKLab	oklab(36.41% -0.0235 -0.0924)
OKLCH	oklch(36.41% 0.095 255.7)
XYZ	xyz(4.9442, 4.7745, 15.6968)
Luminance	0.0478 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173E6F #6F4817

analogous

#176A6F #173E6F #1C176F

triadic

#173E6F #6F173E #3E6F17

tetradic

#173E6F #6F176A #6F4817 #176F1C

square

#173E6F #6F176A #6F4817 #176F1C

split-complementary

#173E6F #6F1C17 #6A6F17

monochromatic

#050E19 #0C223C #173E6F #225AA2 #2D77D3

Accessibility & contrast

On white

10.74

#173E6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#173E6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173E6F

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173E6F	#FFFFFF	#000000	##FFFFFF
##173E6F	1.00	10.74	1.96	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264271

Deuteranopia (green-blind)

#173A6E

Tritanopia (blue-blind)

#004A51

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #173e6f;
/* rgb */ color: rgb(23, 62, 111);
/* oklch */ color: oklch(36.4% 0.095 255.7);

Tailwind

colors: {
  custom: {
    50: '#627299',
    500: '#173e6f',
    950: '#000000',
  },
}

SCSS

$custom: #173e6f;
$custom-light: #627299;
$custom-dark: #000000;

JSON

{
  "hex": "#173e6f",
  "rgb": {
    "r": 23,
    "g": 62,
    "b": 111
  },
  "hsl": {
    "h": 213.409,
    "s": 65.672,
    "l": 26.275
  },
  "oklch": {
    "l": 0.3641,
    "c": 0.09535,
    "h": 255.7
  },
  "luminance": 0.04775
}

Semantic roles & 50–950 ramp

primary

#173E6F

secondary

#A5773D

accent

#9E3FE9

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #173E6F

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

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