#172D6A#172D6A

#172D6A is a dark, moderate blue. Relative luminance 0.031; OKLCH L 32.0% C 0.110 H 265.5°. Best body text is #FFFFFF at 12.96:1 contrast (WCAG AA passes).

Color values

HEX	#172D6A
RGB	rgb(23, 45, 106)
HSL	hsl(224, 64%, 25%)
HSV	hsv(224, 78%, 42%)
CMYK	cmyk(78.3%, 57.5%, 0%, 58.4%)
CIE-LAB	lab(20.44, 15.29, -38.19)
CIE-LCH	lch(20.44, 41.13, 291.82°)
OKLab	oklab(31.97% -0.0086 -0.11)
OKLCH	oklch(31.97% 0.11 265.5)
XYZ	xyz(3.8923, 3.0991, 14.0259)
Luminance	0.0310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172D6A #6A5417

analogous

#17576A #172D6A #2A176A

triadic

#172D6A #6A172D #2D6A17

tetradic

#172D6A #6A1757 #6A5417 #176A2A

square

#172D6A #6A1757 #6A5417 #176A2A

split-complementary

#172D6A #6A2A17 #576A17

monochromatic

#050B19 #0C1838 #172D6A #22429C #2D58CF

Accessibility & contrast

On white

12.96

#172D6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#172D6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172D6A

12.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172D6A	#FFFFFF	#000000	##FFFFFF
##172D6A	1.00	12.96	1.62	12.96
#FFFFFF	12.96	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00356C

Deuteranopia (green-blind)

#002E69

Tritanopia (blue-blind)

#003C46

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #172d6a;
/* rgb */ color: rgb(23, 45, 106);
/* oklch */ color: oklch(32.0% 0.110 265.5);

Tailwind

colors: {
  custom: {
    50: '#626595',
    500: '#172d6a',
    950: '#000000',
  },
}

SCSS

$custom: #172d6a;
$custom-light: #626595;
$custom-dark: #000000;

JSON

{
  "hex": "#172d6a",
  "rgb": {
    "r": 23,
    "g": 45,
    "b": 106
  },
  "hsl": {
    "h": 224.096,
    "s": 64.341,
    "l": 25.294
  },
  "oklch": {
    "l": 0.31966,
    "c": 0.11036,
    "h": 265.5
  },
  "luminance": 0.031
}

Semantic roles & 50–950 ramp

primary

#172D6A

secondary

#A0863D

accent

#BB40E7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050D

muted

#7A7A7E

Preview Lab

Preview with #172D6A

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

Preview Lab → · Contrast checker → · Palette generator →