#173C6F#173C6F

#173C6F is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.9% C 0.098 H 257.3°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#173C6F
RGB	rgb(23, 60, 111)
HSL	hsl(215, 66%, 26%)
HSV	hsv(215, 79%, 44%)
CMYK	cmyk(79.3%, 45.9%, 0%, 56.5%)
CIE-LAB	lab(25.45, 6.65, -33.33)
CIE-LCH	lch(25.45, 33.99, 281.28°)
OKLab	oklab(35.92% -0.0215 -0.0954)
OKLCH	oklch(35.92% 0.098 257.3)
XYZ	xyz(4.8374, 4.5610, 15.6613)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173C6F #6F4A17

analogous

#17686F #173C6F #1E176F

triadic

#173C6F #6F173C #3C6F17

tetradic

#173C6F #6F1768 #6F4A17 #176F1E

square

#173C6F #6F1768 #6F4A17 #176F1E

split-complementary

#173C6F #6F1E17 #686F17

monochromatic

#050E19 #0C213C #173C6F #2257A2 #2D73D3

Accessibility & contrast

On white

10.98

#173C6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#173C6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173C6F

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173C6F	#FFFFFF	#000000	##FFFFFF
##173C6F	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224171

Deuteranopia (green-blind)

#11396E

Tritanopia (blue-blind)

#004850

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #173c6f;
/* rgb */ color: rgb(23, 60, 111);
/* oklch */ color: oklch(35.9% 0.098 257.3);

Tailwind

colors: {
  custom: {
    50: '#627199',
    500: '#173c6f',
    950: '#000000',
  },
}

SCSS

$custom: #173c6f;
$custom-light: #627199;
$custom-dark: #000000;

JSON

{
  "hex": "#173c6f",
  "rgb": {
    "r": 23,
    "g": 60,
    "b": 111
  },
  "hsl": {
    "h": 214.773,
    "s": 65.672,
    "l": 26.275
  },
  "oklch": {
    "l": 0.35916,
    "c": 0.09784,
    "h": 257.3
  },
  "luminance": 0.04562
}

Semantic roles & 50–950 ramp

primary

#173C6F

secondary

#A5793D

accent

#A13FE9

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #173C6F

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

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