#173E68#173E68

#173E68 is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.9% C 0.085 H 252.7°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#173E68
RGB	rgb(23, 62, 104)
HSL	hsl(211, 64%, 25%)
HSV	hsv(211, 78%, 41%)
CMYK	cmyk(77.9%, 40.4%, 0%, 59.2%)
CIE-LAB	lab(25.64, 2.37, -28.53)
CIE-LCH	lch(25.64, 28.63, 274.75°)
OKLab	oklab(35.93% -0.0253 -0.0813)
OKLCH	oklch(35.93% 0.085 252.7)
XYZ	xyz(4.5737, 4.6264, 13.7459)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173E68 #684117

analogous

#176768 #173E68 #181768

triadic

#173E68 #68173E #3E6817

tetradic

#173E68 #681767 #684117 #176818

square

#173E68 #681767 #684117 #176818

split-complementary

#173E68 #681817 #676817

monochromatic

#060F19 #0C2036 #173E68 #225C9A #2D7ACC

Accessibility & contrast

On white

10.91

#173E68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#173E68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173E68

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173E68	#FFFFFF	#000000	##FFFFFF
##173E68	1.00	10.91	1.93	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A416A

Deuteranopia (green-blind)

#1E3967

Tritanopia (blue-blind)

#00484E

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #173e68;
/* rgb */ color: rgb(23, 62, 104);
/* oklch */ color: oklch(35.9% 0.085 252.7);

Tailwind

colors: {
  custom: {
    50: '#607293',
    500: '#173e68',
    950: '#000000',
  },
}

SCSS

$custom: #173e68;
$custom-light: #607293;
$custom-dark: #000000;

JSON

{
  "hex": "#173e68",
  "rgb": {
    "r": 23,
    "g": 62,
    "b": 104
  },
  "hsl": {
    "h": 211.111,
    "s": 63.78,
    "l": 24.902
  },
  "oklch": {
    "l": 0.35925,
    "c": 0.08516,
    "h": 252.7
  },
  "luminance": 0.04627
}

Semantic roles & 50–950 ramp

primary

#173E68

secondary

#9E6F3D

accent

#9741E7

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#05080D

muted

#7A7B7E

Preview Lab

Preview with #173E68

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

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