#172F68#172F68

#172F68 is a dark, moderate blue. Relative luminance 0.032; OKLCH L 32.3% C 0.105 H 264.2°. Best body text is #FFFFFF at 12.78:1 contrast (WCAG AA passes).

Color values

HEX	#172F68
RGB	rgb(23, 47, 104)
HSL	hsl(222, 64%, 25%)
HSV	hsv(222, 78%, 41%)
CMYK	cmyk(77.9%, 54.8%, 0%, 59.2%)
CIE-LAB	lab(20.88, 13.00, -36.17)
CIE-LCH	lch(20.88, 38.43, 289.78°)
OKLab	oklab(32.25% -0.0106 -0.104)
OKLCH	oklch(32.25% 0.105 264.2)
XYZ	xyz(3.8677, 3.2142, 13.5106)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F68 #685017

analogous

#175868 #172F68 #271768

triadic

#172F68 #68172F #2F6817

tetradic

#172F68 #681758 #685017 #176827

square

#172F68 #681758 #685017 #176827

split-complementary

#172F68 #682717 #586817

monochromatic

#060B19 #0C1836 #172F68 #22469A #2D5CCC

Accessibility & contrast

On white

12.78

#172F68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#172F68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F68

12.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F68	#FFFFFF	#000000	##FFFFFF
##172F68	1.00	12.78	1.64	12.78
#FFFFFF	12.78	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09366A

Deuteranopia (green-blind)

#002F67

Tritanopia (blue-blind)

#003D46

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #172f68;
/* rgb */ color: rgb(23, 47, 104);
/* oklch */ color: oklch(32.3% 0.105 264.2);

Tailwind

colors: {
  custom: {
    50: '#616794',
    500: '#172f68',
    950: '#000000',
  },
}

SCSS

$custom: #172f68;
$custom-light: #616794;
$custom-dark: #000000;

JSON

{
  "hex": "#172f68",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 104
  },
  "hsl": {
    "h": 222.222,
    "s": 63.78,
    "l": 24.902
  },
  "oklch": {
    "l": 0.32253,
    "c": 0.10458,
    "h": 264.2
  },
  "luminance": 0.03215
}

Semantic roles & 50–950 ramp

primary

#172F68

secondary

#9E813D

accent

#B641E7

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#05060D

muted

#7A7A7E

Preview Lab

Preview with #172F68

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

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