#172853#172853

#172853 is a dark, moderate blue. Relative luminance 0.023; OKLCH L 28.9% C 0.081 H 265.4°. Best body text is #FFFFFF at 14.34:1 contrast (WCAG AA passes).

Color values

HEX	#172853
RGB	rgb(23, 40, 83)
HSL	hsl(223, 57%, 21%)
HSV	hsv(223, 72%, 33%)
CMYK	cmyk(72.3%, 51.8%, 0%, 67.5%)
CIE-LAB	lab(17.10, 9.36, -28.37)
CIE-LCH	lch(17.10, 29.87, 288.27°)
OKLab	oklab(28.87% -0.0065 -0.0812)
OKLCH	oklch(28.87% 0.081 265.4)
XYZ	xyz(2.6729, 2.3240, 8.4897)
Luminance	0.0232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172853 #534217

analogous

#174653 #172853 #241753

triadic

#172853 #531728 #285317

tetradic

#172853 #531746 #534217 #175324

square

#172853 #531746 #534217 #175324

split-complementary

#172853 #532417 #465317

monochromatic

#070C18 #0A1123 #172853 #243F83 #3256B3

Accessibility & contrast

On white

14.34

#172853 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#172853 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172853

14.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172853	#FFFFFF	#000000	##FFFFFF
##172853	1.00	14.34	1.46	14.34
#FFFFFF	14.34	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#122D55

Deuteranopia (green-blind)

#062852

Tritanopia (blue-blind)

#003239

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #172853;
/* rgb */ color: rgb(23, 40, 83);
/* oklch */ color: oklch(28.9% 0.081 265.4);

Tailwind

colors: {
  custom: {
    50: '#5c6184',
    500: '#172853',
    950: '#000000',
  },
}

SCSS

$custom: #172853;
$custom-light: #5c6184;
$custom-dark: #000000;

JSON

{
  "hex": "#172853",
  "rgb": {
    "r": 23,
    "g": 40,
    "b": 83
  },
  "hsl": {
    "h": 223,
    "s": 56.604,
    "l": 20.784
  },
  "oklch": {
    "l": 0.28865,
    "c": 0.08149,
    "h": 265.4
  },
  "luminance": 0.02324
}

Semantic roles & 50–950 ramp

primary

#172853

secondary

#8A743C

accent

#B548E0

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04050B

muted

#79797C

Preview Lab

Preview with #172853

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

Preview Lab → · Contrast checker → · Palette generator →