#172178#172178

#172178 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.9% C 0.146 H 269.7°. Best body text is #FFFFFF at 13.77:1 contrast (WCAG AA passes).

Color values

HEX	#172178
RGB	rgb(23, 33, 120)
HSL	hsl(234, 68%, 28%)
HSV	hsv(234, 81%, 47%)
CMYK	cmyk(80.8%, 72.5%, 0%, 52.9%)
CIE-LAB	lab(18.48, 29.36, -50.42)
CIE-LCH	lch(18.48, 58.34, 300.22°)
OKLab	oklab(30.92% -0.0007 -0.146)
OKLCH	oklch(30.92% 0.146 269.7)
XYZ	xyz(4.2862, 2.6255, 18.0465)
Luminance	0.0263 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172178 #786E17

analogous

#175278 #172178 #3D1778

triadic

#172178 #781721 #217817

tetradic

#172178 #781752 #786E17 #17783D

square

#172178 #781752 #786E17 #17783D

split-complementary

#172178 #783D17 #527817

monochromatic

#05071A #0D1345 #172178 #212FAB #3243D8

Accessibility & contrast

On white

13.77

#172178 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#172178 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172178

13.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172178	#FFFFFF	#000000	##FFFFFF
##172178	1.00	13.77	1.53	13.77
#FFFFFF	13.77	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327B

Deuteranopia (green-blind)

#002876

Tritanopia (blue-blind)

#00394A

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #172178;
/* rgb */ color: rgb(23, 33, 120);
/* oklch */ color: oklch(30.9% 0.146 269.7);

Tailwind

colors: {
  custom: {
    50: '#675ca0',
    500: '#172178',
    950: '#000000',
  },
}

SCSS

$custom: #172178;
$custom-light: #675ca0;
$custom-dark: #000000;

JSON

{
  "hex": "#172178",
  "rgb": {
    "r": 23,
    "g": 33,
    "b": 120
  },
  "hsl": {
    "h": 233.814,
    "s": 67.832,
    "l": 28.039
  },
  "oklch": {
    "l": 0.3092,
    "c": 0.14599,
    "h": 269.7
  },
  "luminance": 0.02626
}

Semantic roles & 50–950 ramp

primary

#172178

secondary

#ADA23E

accent

#D93DEB

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040F

muted

#7A797E

Preview Lab

Preview with #172178

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

Preview Lab → · Contrast checker → · Palette generator →