#173D68#173D68

#173D68 is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.7% C 0.086 H 253.7°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#173D68
RGB	rgb(23, 61, 104)
HSL	hsl(212, 64%, 25%)
HSV	hsv(212, 78%, 41%)
CMYK	cmyk(77.9%, 41.3%, 0%, 59.2%)
CIE-LAB	lab(25.32, 3.06, -29.05)
CIE-LCH	lch(25.32, 29.21, 276.01°)
OKLab	oklab(35.67% -0.0242 -0.0828)
OKLCH	oklch(35.67% 0.086 253.7)
XYZ	xyz(4.5199, 4.5186, 13.7280)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173D68 #684217

analogous

#176668 #173D68 #191768

triadic

#173D68 #68173D #3D6817

tetradic

#173D68 #681766 #684217 #176819

square

#173D68 #681766 #684217 #176819

split-complementary

#173D68 #681917 #666817

monochromatic

#060F19 #0C2036 #173D68 #225A9A #2D78CC

Accessibility & contrast

On white

11.03

#173D68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#173D68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173D68

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173D68	#FFFFFF	#000000	##FFFFFF
##173D68	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29406A

Deuteranopia (green-blind)

#1C3967

Tritanopia (blue-blind)

#00474D

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #173d68;
/* rgb */ color: rgb(23, 61, 104);
/* oklch */ color: oklch(35.7% 0.086 253.7);

Tailwind

colors: {
  custom: {
    50: '#607293',
    500: '#173d68',
    950: '#000000',
  },
}

SCSS

$custom: #173d68;
$custom-light: #607293;
$custom-dark: #000000;

JSON

{
  "hex": "#173d68",
  "rgb": {
    "r": 23,
    "g": 61,
    "b": 104
  },
  "hsl": {
    "h": 211.852,
    "s": 63.78,
    "l": 24.902
  },
  "oklch": {
    "l": 0.3567,
    "c": 0.08632,
    "h": 253.7
  },
  "luminance": 0.04519
}

Semantic roles & 50–950 ramp

primary

#173D68

secondary

#9E703D

accent

#9941E7

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #173D68

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

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