#172D4A#172D4A

#172D4A is a dark, moderate cyan. Relative luminance 0.026; OKLCH L 29.5% C 0.060 H 255.9°. Best body text is #FFFFFF at 13.90:1 contrast (WCAG AA passes).

Color values

HEX	#172D4A
RGB	rgb(23, 45, 74)
HSL	hsl(214, 53%, 19%)
HSV	hsv(214, 69%, 29%)
CMYK	cmyk(68.9%, 39.2%, 0%, 71%)
CIE-LAB	lab(18.16, 2.01, -20.60)
CIE-LCH	lch(18.16, 20.70, 275.57°)
OKLab	oklab(29.49% -0.0146 -0.0584)
OKLCH	oklch(29.49% 0.06 255.9)
XYZ	xyz(2.5273, 2.5531, 6.8368)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172D4A #4A3417

analogous

#17474A #172D4A #1B174A

triadic

#172D4A #4A172D #2D4A17

tetradic

#172D4A #4A1747 #4A3417 #174A1B

square

#172D4A #4A1747 #4A3417 #174A1B

split-complementary

#172D4A #4A1B17 #474A17

monochromatic

#070E17 #08111B #172D4A #264979 #3466A7

Accessibility & contrast

On white

13.90

#172D4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#172D4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172D4A

13.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172D4A	#FFFFFF	#000000	##FFFFFF
##172D4A	1.00	13.90	1.51	13.90
#FFFFFF	13.90	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#212F4B

Deuteranopia (green-blind)

#1A2A49

Tritanopia (blue-blind)

#003438

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #172d4a;
/* rgb */ color: rgb(23, 45, 74);
/* oklch */ color: oklch(29.5% 0.060 255.9);

Tailwind

colors: {
  custom: {
    50: '#5a657c',
    500: '#172d4a',
    950: '#000000',
  },
}

SCSS

$custom: #172d4a;
$custom-light: #5a657c;
$custom-dark: #000000;

JSON

{
  "hex": "#172d4a",
  "rgb": {
    "r": 23,
    "g": 45,
    "b": 74
  },
  "hsl": {
    "h": 214.118,
    "s": 52.577,
    "l": 19.02
  },
  "oklch": {
    "l": 0.29485,
    "c": 0.06017,
    "h": 255.9
  },
  "luminance": 0.02553
}

Semantic roles & 50–950 ramp

primary

#172D4A

secondary

#81633C

accent

#9E4CDC

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#040509

muted

#797A7B

Preview Lab

Preview with #172D4A

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

Preview Lab → · Contrast checker → · Palette generator →