#172F69#172F69

#172F69 is a dark, moderate blue. Relative luminance 0.032; OKLCH L 32.3% C 0.106 H 264.3°. Best body text is #FFFFFF at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#172F69
RGB	rgb(23, 47, 105)
HSL	hsl(222, 64%, 25%)
HSV	hsv(222, 78%, 41%)
CMYK	cmyk(78.1%, 55.2%, 0%, 58.8%)
CIE-LAB	lab(20.96, 13.42, -36.69)
CIE-LCH	lch(20.96, 39.07, 290.09°)
OKLab	oklab(32.34% -0.0105 -0.1056)
OKLCH	oklch(32.34% 0.106 264.3)
XYZ	xyz(3.9188, 3.2347, 13.7797)
Luminance	0.0323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F69 #695117

analogous

#175869 #172F69 #281769

triadic

#172F69 #69172F #2F6917

tetradic

#172F69 #691758 #695117 #176928

square

#172F69 #691758 #695117 #176928

split-complementary

#172F69 #692817 #586917

monochromatic

#050B19 #0C1937 #172F69 #22459B #2D5CCD

Accessibility & contrast

On white

12.75

#172F69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#172F69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F69

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F69	#FFFFFF	#000000	##FFFFFF
##172F69	1.00	12.75	1.65	12.75
#FFFFFF	12.75	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#08366B

Deuteranopia (green-blind)

#002F68

Tritanopia (blue-blind)

#003D47

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #172f69;
/* rgb */ color: rgb(23, 47, 105);
/* oklch */ color: oklch(32.3% 0.106 264.3);

Tailwind

colors: {
  custom: {
    50: '#616794',
    500: '#172f69',
    950: '#000000',
  },
}

SCSS

$custom: #172f69;
$custom-light: #616794;
$custom-dark: #000000;

JSON

{
  "hex": "#172f69",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 105
  },
  "hsl": {
    "h": 222.439,
    "s": 64.063,
    "l": 25.098
  },
  "oklch": {
    "l": 0.32337,
    "c": 0.1061,
    "h": 264.3
  },
  "luminance": 0.03235
}

Semantic roles & 50–950 ramp

primary

#172F69

secondary

#9F823D

accent

#B641E7

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #172F69

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

Preview Lab → · Contrast checker → · Palette generator →