#172D6E#172D6E

#172D6E is a dark, moderate blue. Relative luminance 0.032; OKLCH L 32.3% C 0.116 H 265.9°. Best body text is #FFFFFF at 12.83:1 contrast (WCAG AA passes).

Color values

HEX	#172D6E
RGB	rgb(23, 45, 110)
HSL	hsl(225, 65%, 26%)
HSV	hsv(225, 79%, 43%)
CMYK	cmyk(79.1%, 59.1%, 0%, 56.9%)
CIE-LAB	lab(20.77, 16.95, -40.24)
CIE-LCH	lch(20.77, 43.66, 292.84°)
OKLab	oklab(32.32% -0.0084 -0.1161)
OKLCH	oklch(32.32% 0.116 265.9)
XYZ	xyz(4.1052, 3.1843, 15.1471)
Luminance	0.0319 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172D6E #6E5817

analogous

#17586E #172D6E #2C176E

triadic

#172D6E #6E172D #2D6E17

tetradic

#172D6E #6E1758 #6E5817 #176E2C

square

#172D6E #6E1758 #6E5817 #176E2C

split-complementary

#172D6E #6E2C17 #586E17

monochromatic

#050A19 #0C183B #172D6E #2242A1 #2C57D3

Accessibility & contrast

On white

12.83

#172D6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#172D6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172D6E

12.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172D6E	#FFFFFF	#000000	##FFFFFF
##172D6E	1.00	12.83	1.64	12.83
#FFFFFF	12.83	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003670

Deuteranopia (green-blind)

#002E6D

Tritanopia (blue-blind)

#003D48

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #172d6e;
/* rgb */ color: rgb(23, 45, 110);
/* oklch */ color: oklch(32.3% 0.116 265.9);

Tailwind

colors: {
  custom: {
    50: '#636598',
    500: '#172d6e',
    950: '#000000',
  },
}

SCSS

$custom: #172d6e;
$custom-light: #636598;
$custom-dark: #000000;

JSON

{
  "hex": "#172d6e",
  "rgb": {
    "r": 23,
    "g": 45,
    "b": 110
  },
  "hsl": {
    "h": 224.828,
    "s": 65.414,
    "l": 26.078
  },
  "oklch": {
    "l": 0.32319,
    "c": 0.11636,
    "h": 265.9
  },
  "luminance": 0.03185
}

Semantic roles & 50–950 ramp

primary

#172D6E

secondary

#A48A3D

accent

#BE3FE8

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #172D6E

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

Preview Lab → · Contrast checker → · Palette generator →