#172873#172873

#172873 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.7% C 0.130 H 268.0°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#172873
RGB	rgb(23, 40, 115)
HSL	hsl(229, 67%, 27%)
HSV	hsv(229, 80%, 45%)
CMYK	cmyk(80%, 65.2%, 0%, 54.9%)
CIE-LAB	lab(19.79, 22.58, -45.05)
CIE-LCH	lch(19.79, 50.39, 296.62°)
OKLab	oklab(31.73% -0.0045 -0.1303)
OKLCH	oklch(31.73% 0.13 268)
XYZ	xyz(4.2056, 2.9371, 16.5616)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172873 #736217

analogous

#175673 #172873 #341773

triadic

#172873 #731728 #287317

tetradic

#172873 #731756 #736217 #177334

square

#172873 #731756 #736217 #177334

split-complementary

#172873 #733417 #567317

monochromatic

#05091A #0D1640 #172873 #213AA6 #2F4ED5

Accessibility & contrast

On white

13.23

#172873 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#172873 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172873

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172873	#FFFFFF	#000000	##FFFFFF
##172873	1.00	13.23	1.59	13.23
#FFFFFF	13.23	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003475

Deuteranopia (green-blind)

#002C72

Tritanopia (blue-blind)

#003B49

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #172873;
/* rgb */ color: rgb(23, 40, 115);
/* oklch */ color: oklch(31.7% 0.130 268.0);

Tailwind

colors: {
  custom: {
    50: '#64619c',
    500: '#172873',
    950: '#000000',
  },
}

SCSS

$custom: #172873;
$custom-light: #64619c;
$custom-dark: #000000;

JSON

{
  "hex": "#172873",
  "rgb": {
    "r": 23,
    "g": 40,
    "b": 115
  },
  "hsl": {
    "h": 228.913,
    "s": 66.667,
    "l": 27.059
  },
  "oklch": {
    "l": 0.31728,
    "c": 0.13035,
    "h": 268
  },
  "luminance": 0.02938
}

Semantic roles & 50–950 ramp

primary

#172873

secondary

#A9953D

accent

#CA3EEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #172873

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

Preview Lab → · Contrast checker → · Palette generator →