#172F65#172F65

#172F65 is a dark, moderate blue. Relative luminance 0.032; OKLCH L 32.0% C 0.100 H 263.7°. Best body text is #FFFFFF at 12.88:1 contrast (WCAG AA passes).

Color values

HEX	#172F65
RGB	rgb(23, 47, 101)
HSL	hsl(222, 63%, 24%)
HSV	hsv(222, 77%, 40%)
CMYK	cmyk(77.2%, 53.5%, 0%, 60.4%)
CIE-LAB	lab(20.65, 11.75, -34.58)
CIE-LCH	lch(20.65, 36.52, 288.76°)
OKLab	oklab(32% -0.011 -0.0994)
OKLCH	oklch(32% 0.1 263.7)
XYZ	xyz(3.7180, 3.1544, 12.7223)
Luminance	0.0316 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F65 #654D17

analogous

#175665 #172F65 #261765

triadic

#172F65 #65172F #2F6517

tetradic

#172F65 #651756 #654D17 #176526

square

#172F65 #651756 #654D17 #176526

split-complementary

#172F65 #652617 #566517

monochromatic

#060C19 #0C1833 #172F65 #224697 #2E5DC9

Accessibility & contrast

On white

12.88

#172F65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#172F65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F65

12.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F65	#FFFFFF	#000000	##FFFFFF
##172F65	1.00	12.88	1.63	12.88
#FFFFFF	12.88	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E3667

Deuteranopia (green-blind)

#002E64

Tritanopia (blue-blind)

#003C45

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #172f65;
/* rgb */ color: rgb(23, 47, 101);
/* oklch */ color: oklch(32.0% 0.100 263.7);

Tailwind

colors: {
  custom: {
    50: '#606791',
    500: '#172f65',
    950: '#000000',
  },
}

SCSS

$custom: #172f65;
$custom-light: #606791;
$custom-dark: #000000;

JSON

{
  "hex": "#172f65",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 101
  },
  "hsl": {
    "h": 221.538,
    "s": 62.903,
    "l": 24.314
  },
  "oklch": {
    "l": 0.32004,
    "c": 0.1,
    "h": 263.7
  },
  "luminance": 0.03155
}

Semantic roles & 50–950 ramp

primary

#172F65

secondary

#9B7E3C

accent

#B342E6

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#05060D

muted

#7A7A7E

Preview Lab

Preview with #172F65

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

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