#172F62#172F62

#172F62 is a dark, moderate blue. Relative luminance 0.031; OKLCH L 31.8% C 0.095 H 263.1°. Best body text is #FFFFFF at 12.97:1 contrast (WCAG AA passes).

Color values

HEX	#172F62
RGB	rgb(23, 47, 98)
HSL	hsl(221, 62%, 24%)
HSV	hsv(221, 77%, 38%)
CMYK	cmyk(76.5%, 52%, 0%, 61.6%)
CIE-LAB	lab(20.43, 10.49, -32.98)
CIE-LCH	lch(20.43, 34.61, 287.65°)
OKLab	oklab(31.76% -0.0114 -0.0947)
OKLCH	oklch(31.76% 0.095 263.1)
XYZ	xyz(3.5737, 3.0967, 11.9623)
Luminance	0.0310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F62 #624A17

analogous

#175462 #172F62 #241762

triadic

#172F62 #62172F #2F6217

tetradic

#172F62 #621754 #624A17 #176224

square

#172F62 #621754 #624A17 #176224

split-complementary

#172F62 #622417 #546217

monochromatic

#060C19 #0B1730 #172F62 #234794 #2E5FC5

Accessibility & contrast

On white

12.97

#172F62 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#172F62 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F62

12.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F62	#FFFFFF	#000000	##FFFFFF
##172F62	1.00	12.97	1.62	12.97
#FFFFFF	12.97	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#123564

Deuteranopia (green-blind)

#002E61

Tritanopia (blue-blind)

#003B43

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #172f62;
/* rgb */ color: rgb(23, 47, 98);
/* oklch */ color: oklch(31.8% 0.095 263.1);

Tailwind

colors: {
  custom: {
    50: '#5f678f',
    500: '#172f62',
    950: '#000000',
  },
}

SCSS

$custom: #172f62;
$custom-light: #5f678f;
$custom-dark: #000000;

JSON

{
  "hex": "#172f62",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 98
  },
  "hsl": {
    "h": 220.8,
    "s": 61.983,
    "l": 23.725
  },
  "oklch": {
    "l": 0.3176,
    "c": 0.09537,
    "h": 263.1
  },
  "luminance": 0.03097
}

Semantic roles & 50–950 ramp

primary

#172F62

secondary

#997B3C

accent

#B143E5

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #172F62

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

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