#172353#172353

#172353 is a dark, moderate blue. Relative luminance 0.020; OKLCH L 27.7% C 0.089 H 269.3°. Best body text is #FFFFFF at 14.98:1 contrast (WCAG AA passes).

Color values

HEX	#172353
RGB	rgb(23, 35, 83)
HSL	hsl(228, 57%, 21%)
HSV	hsv(228, 72%, 33%)
CMYK	cmyk(72.3%, 57.8%, 0%, 67.5%)
CIE-LAB	lab(15.53, 13.09, -30.90)
CIE-LCH	lch(15.53, 33.56, 292.95°)
OKLab	oklab(27.67% -0.0011 -0.0888)
OKLCH	oklch(27.67% 0.089 269.3)
XYZ	xyz(2.5152, 2.0085, 8.4371)
Luminance	0.0201 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172353 #534717

analogous

#174153 #172353 #291753

triadic

#172353 #531723 #235317

tetradic

#172353 #531741 #534717 #175329

square

#172353 #531741 #534717 #175329

split-complementary

#172353 #532917 #415317

monochromatic

#070A18 #0A0F23 #172353 #243783 #324BB3

Accessibility & contrast

On white

14.98

#172353 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#172353 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172353

14.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172353	#FFFFFF	#000000	##FFFFFF
##172353	1.00	14.98	1.40	14.98
#FFFFFF	14.98	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#042A55

Deuteranopia (green-blind)

#002452

Tritanopia (blue-blind)

#002E37

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #172353;
/* rgb */ color: rgb(23, 35, 83);
/* oklch */ color: oklch(27.7% 0.089 269.3);

Tailwind

colors: {
  custom: {
    50: '#5c5d84',
    500: '#172353',
    950: '#000000',
  },
}

SCSS

$custom: #172353;
$custom-light: #5c5d84;
$custom-dark: #000000;

JSON

{
  "hex": "#172353",
  "rgb": {
    "r": 23,
    "g": 35,
    "b": 83
  },
  "hsl": {
    "h": 228,
    "s": 56.604,
    "l": 20.784
  },
  "oklch": {
    "l": 0.27672,
    "c": 0.08877,
    "h": 269.3
  },
  "luminance": 0.02009
}

Semantic roles & 50–950 ramp

primary

#172353

secondary

#8A7A3C

accent

#C148E0

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04040B

muted

#79797C

Preview Lab

Preview with #172353

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

Preview Lab → · Contrast checker → · Palette generator →