#173D6C#173D6C

#173D6C is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.9% C 0.092 H 255.4°. Best body text is #FFFFFF at 10.94:1 contrast (WCAG AA passes).

Color values

HEX	#173D6C
RGB	rgb(23, 61, 108)
HSL	hsl(213, 65%, 26%)
HSV	hsv(213, 79%, 42%)
CMYK	cmyk(78.7%, 43.5%, 0%, 57.6%)
CIE-LAB	lab(25.57, 4.71, -31.22)
CIE-LCH	lch(25.57, 31.57, 278.58°)
OKLab	oklab(35.95% -0.0232 -0.0892)
OKLCH	oklch(35.95% 0.092 255.4)
XYZ	xyz(4.7279, 4.6018, 14.8235)
Luminance	0.0460 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173D6C #6C4617

analogous

#17676C #173D6C #1B176C

triadic

#173D6C #6C173D #3D6C17

tetradic

#173D6C #6C1767 #6C4617 #176C1B

square

#173D6C #6C1767 #6C4617 #176C1B

split-complementary

#173D6C #6C1B17 #676C17

monochromatic

#050E19 #0C213A #173D6C #22599E #2C76D1

Accessibility & contrast

On white

10.94

#173D6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#173D6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173D6C

10.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173D6C	#FFFFFF	#000000	##FFFFFF
##173D6C	1.00	10.94	1.92	10.94
#FFFFFF	10.94	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26416E

Deuteranopia (green-blind)

#18396B

Tritanopia (blue-blind)

#00484F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #173d6c;
/* rgb */ color: rgb(23, 61, 108);
/* oklch */ color: oklch(35.9% 0.092 255.4);

Tailwind

colors: {
  custom: {
    50: '#617296',
    500: '#173d6c',
    950: '#000000',
  },
}

SCSS

$custom: #173d6c;
$custom-light: #617296;
$custom-dark: #000000;

JSON

{
  "hex": "#173d6c",
  "rgb": {
    "r": 23,
    "g": 61,
    "b": 108
  },
  "hsl": {
    "h": 213.176,
    "s": 64.885,
    "l": 25.686
  },
  "oklch": {
    "l": 0.35948,
    "c": 0.09218,
    "h": 255.4
  },
  "luminance": 0.04602
}

Semantic roles & 50–950 ramp

primary

#173D6C

secondary

#A2753D

accent

#9D40E8

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #173D6C

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

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