#172289#172289

#172289 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.0% C 0.167 H 268.9°. Best body text is #FFFFFF at 12.91:1 contrast (WCAG AA passes).

Color values

HEX	#172289
RGB	rgb(23, 34, 137)
HSL	hsl(234, 71%, 31%)
HSV	hsv(234, 83%, 54%)
CMYK	cmyk(83.2%, 75.2%, 0%, 46.3%)
CIE-LAB	lab(20.56, 35.08, -57.74)
CIE-LCH	lch(20.56, 67.56, 301.28°)
OKLab	oklab(32.97% -0.0033 -0.1673)
OKLCH	oklch(32.97% 0.167 268.9)
XYZ	xyz(5.4392, 3.1317, 23.9799)
Luminance	0.0313 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172289 #897E17

analogous

#175B89 #172289 #451789

triadic

#172289 #891722 #228917

tetradic

#172289 #89175B #897E17 #178945

square

#172289 #89175B #897E17 #178945

split-complementary

#172289 #894517 #5B8917

monochromatic

#050820 #0E1555 #172289 #202FBD #3C4CDE

Accessibility & contrast

On white

12.91

#172289 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#172289 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172289

12.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172289	#FFFFFF	#000000	##FFFFFF
##172289	1.00	12.91	1.63	12.91
#FFFFFF	12.91	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378C

Deuteranopia (green-blind)

#002C87

Tritanopia (blue-blind)

#004053

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #172289;
/* rgb */ color: rgb(23, 34, 137);
/* oklch */ color: oklch(33.0% 0.167 268.9);

Tailwind

colors: {
  custom: {
    50: '#6b5ead',
    500: '#172289',
    950: '#000000',
  },
}

SCSS

$custom: #172289;
$custom-light: #6b5ead;
$custom-dark: #000000;

JSON

{
  "hex": "#172289",
  "rgb": {
    "r": 23,
    "g": 34,
    "b": 137
  },
  "hsl": {
    "h": 234.211,
    "s": 71.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.32974,
    "c": 0.16733,
    "h": 268.9
  },
  "luminance": 0.03132
}

Semantic roles & 50–950 ramp

primary

#172289

secondary

#BDB13F

accent

#DD3AEE

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #172289

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

Preview Lab → · Contrast checker → · Palette generator →