#172179#172179

#172179 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.0% C 0.147 H 269.7°. Best body text is #FFFFFF at 13.73:1 contrast (WCAG AA passes).

Color values

HEX	#172179
RGB	rgb(23, 33, 121)
HSL	hsl(234, 68%, 28%)
HSV	hsv(234, 81%, 47%)
CMYK	cmyk(81%, 72.7%, 0%, 52.5%)
CIE-LAB	lab(18.58, 29.74, -50.88)
CIE-LCH	lch(18.58, 58.94, 300.31°)
OKLab	oklab(31.03% -0.0008 -0.1473)
OKLCH	oklch(31.03% 0.147 269.7)
XYZ	xyz(4.3472, 2.6499, 18.3678)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172179 #796F17

analogous

#175279 #172179 #3E1779

triadic

#172179 #791721 #217917

tetradic

#172179 #791752 #796F17 #17793E

square

#172179 #791752 #796F17 #17793E

split-complementary

#172179 #793E17 #527917

monochromatic

#05071A #0D1346 #172179 #212FAC #3243D8

Accessibility & contrast

On white

13.73

#172179 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#172179 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172179

13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172179	#FFFFFF	#000000	##FFFFFF
##172179	1.00	13.73	1.53	13.73
#FFFFFF	13.73	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327C

Deuteranopia (green-blind)

#002877

Tritanopia (blue-blind)

#003A4A

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #172179;
/* rgb */ color: rgb(23, 33, 121);
/* oklch */ color: oklch(31.0% 0.147 269.7);

Tailwind

colors: {
  custom: {
    50: '#675ca1',
    500: '#172179',
    950: '#000000',
  },
}

SCSS

$custom: #172179;
$custom-light: #675ca1;
$custom-dark: #000000;

JSON

{
  "hex": "#172179",
  "rgb": {
    "r": 23,
    "g": 33,
    "b": 121
  },
  "hsl": {
    "h": 233.878,
    "s": 68.056,
    "l": 28.235
  },
  "oklch": {
    "l": 0.31029,
    "c": 0.14734,
    "h": 269.7
  },
  "luminance": 0.0265
}

Semantic roles & 50–950 ramp

primary

#172179

secondary

#AEA33E

accent

#D93DEB

background

#F6F5FA

surface

#EBE9F3

border

#C6C5CD

text

#07040F

muted

#7A797F

Preview Lab

Preview with #172179

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

Preview Lab → · Contrast checker → · Palette generator →