#172C4A#172C4A

#172C4A is a dark, moderate blue. Relative luminance 0.025; OKLCH L 29.2% C 0.061 H 257.4°. Best body text is #FFFFFF at 14.04:1 contrast (WCAG AA passes).

Color values

HEX	#172C4A
RGB	rgb(23, 44, 74)
HSL	hsl(215, 53%, 19%)
HSV	hsv(215, 69%, 29%)
CMYK	cmyk(68.9%, 40.5%, 0%, 71%)
CIE-LAB	lab(17.82, 2.73, -21.14)
CIE-LCH	lch(17.82, 21.31, 277.35°)
OKLab	oklab(29.22% -0.0134 -0.0599)
OKLCH	oklch(29.22% 0.061 257.4)
XYZ	xyz(2.4896, 2.4777, 6.8243)
Luminance	0.0248 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172C4A #4A3517

analogous

#17464A #172C4A #1C174A

triadic

#172C4A #4A172C #2C4A17

tetradic

#172C4A #4A1746 #4A3517 #174A1C

square

#172C4A #4A1746 #4A3517 #174A1C

split-complementary

#172C4A #4A1C17 #464A17

monochromatic

#070E17 #08101B #172C4A #264879 #3464A7

Accessibility & contrast

On white

14.04

#172C4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#172C4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172C4A

14.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172C4A	#FFFFFF	#000000	##FFFFFF
##172C4A	1.00	14.04	1.50	14.04
#FFFFFF	14.04	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F2E4B

Deuteranopia (green-blind)

#182949

Tritanopia (blue-blind)

#003337

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #172c4a;
/* rgb */ color: rgb(23, 44, 74);
/* oklch */ color: oklch(29.2% 0.061 257.4);

Tailwind

colors: {
  custom: {
    50: '#5a647c',
    500: '#172c4a',
    950: '#000000',
  },
}

SCSS

$custom: #172c4a;
$custom-light: #5a647c;
$custom-dark: #000000;

JSON

{
  "hex": "#172c4a",
  "rgb": {
    "r": 23,
    "g": 44,
    "b": 74
  },
  "hsl": {
    "h": 215.294,
    "s": 52.577,
    "l": 19.02
  },
  "oklch": {
    "l": 0.2922,
    "c": 0.06142,
    "h": 257.4
  },
  "luminance": 0.02478
}

Semantic roles & 50–950 ramp

primary

#172C4A

secondary

#81653C

accent

#A14CDC

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#040509

muted

#797A7B

Preview Lab

Preview with #172C4A

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

Preview Lab → · Contrast checker → · Palette generator →