#172188#172188

#172188 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.7% C 0.167 H 269.0°. Best body text is #FFFFFF at 13.05:1 contrast (WCAG AA passes).

Color values

HEX	#172188
RGB	rgb(23, 33, 136)
HSL	hsl(235, 71%, 31%)
HSV	hsv(235, 83%, 53%)
CMYK	cmyk(83.1%, 75.7%, 0%, 46.7%)
CIE-LAB	lab(20.23, 35.33, -57.66)
CIE-LCH	lch(20.23, 67.63, 301.50°)
OKLab	oklab(32.7% -0.0028 -0.1671)
OKLCH	oklch(32.7% 0.167 269)
XYZ	xyz(5.3396, 3.0468, 23.5945)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172188 #887E17

analogous

#175988 #172188 #451788

triadic

#172188 #881721 #218817

tetradic

#172188 #881759 #887E17 #178845

square

#172188 #881759 #887E17 #178845

split-complementary

#172188 #884517 #598817

monochromatic

#05081F #0E1454 #172188 #202EBC #3B4ADE

Accessibility & contrast

On white

13.05

#172188 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#172188 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172188

13.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172188	#FFFFFF	#000000	##FFFFFF
##172188	1.00	13.05	1.61	13.05
#FFFFFF	13.05	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368B

Deuteranopia (green-blind)

#002B86

Tritanopia (blue-blind)

#003F52

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #172188;
/* rgb */ color: rgb(23, 33, 136);
/* oklch */ color: oklch(32.7% 0.167 269.0);

Tailwind

colors: {
  custom: {
    50: '#6b5dac',
    500: '#172188',
    950: '#000000',
  },
}

SCSS

$custom: #172188;
$custom-light: #6b5dac;
$custom-dark: #000000;

JSON

{
  "hex": "#172188",
  "rgb": {
    "r": 23,
    "g": 33,
    "b": 136
  },
  "hsl": {
    "h": 234.69,
    "s": 71.069,
    "l": 31.176
  },
  "oklch": {
    "l": 0.32702,
    "c": 0.16709,
    "h": 269
  },
  "luminance": 0.03047
}

Semantic roles & 50–950 ramp

primary

#172188

secondary

#BCB13F

accent

#DE3AEE

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #172188

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

Preview Lab → · Contrast checker → · Palette generator →