#173D6A#173D6A

#173D6A is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.8% C 0.089 H 254.6°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#173D6A
RGB	rgb(23, 61, 106)
HSL	hsl(213, 64%, 25%)
HSV	hsv(213, 78%, 42%)
CMYK	cmyk(78.3%, 42.5%, 0%, 58.4%)
CIE-LAB	lab(25.44, 3.88, -30.14)
CIE-LCH	lch(25.44, 30.39, 277.34°)
OKLab	oklab(35.81% -0.0237 -0.086)
OKLCH	oklch(35.81% 0.089 254.6)
XYZ	xyz(4.6226, 4.5597, 14.2694)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173D6A #6A4417

analogous

#17666A #173D6A #1A176A

triadic

#173D6A #6A173D #3D6A17

tetradic

#173D6A #6A1766 #6A4417 #176A1A

square

#173D6A #6A1766 #6A4417 #176A1A

split-complementary

#173D6A #6A1A17 #666A17

monochromatic

#050E19 #0C2038 #173D6A #225A9C #2D77CF

Accessibility & contrast

On white

10.98

#173D6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#173D6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173D6A

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173D6A	#FFFFFF	#000000	##FFFFFF
##173D6A	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)

#28406C

Deuteranopia (green-blind)

#1A3969

Tritanopia (blue-blind)

#00484E

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #173d6a;
/* rgb */ color: rgb(23, 61, 106);
/* oklch */ color: oklch(35.8% 0.089 254.6);

Tailwind

colors: {
  custom: {
    50: '#617295',
    500: '#173d6a',
    950: '#000000',
  },
}

SCSS

$custom: #173d6a;
$custom-light: #617295;
$custom-dark: #000000;

JSON

{
  "hex": "#173d6a",
  "rgb": {
    "r": 23,
    "g": 61,
    "b": 106
  },
  "hsl": {
    "h": 212.53,
    "s": 64.341,
    "l": 25.294
  },
  "oklch": {
    "l": 0.35808,
    "c": 0.08925,
    "h": 254.6
  },
  "luminance": 0.0456
}

Semantic roles & 50–950 ramp

primary

#173D6A

secondary

#A0733D

accent

#9B40E7

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #173D6A

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

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