#172F4A#172F4A

#172F4A is a dark, muted cyan. Relative luminance 0.027; OKLCH L 30.0% C 0.058 H 252.7°. Best body text is #FFFFFF at 13.62:1 contrast (WCAG AA passes).

Color values

HEX	#172F4A
RGB	rgb(23, 47, 74)
HSL	hsl(212, 53%, 19%)
HSV	hsv(212, 69%, 29%)
CMYK	cmyk(68.9%, 36.5%, 0%, 71%)
CIE-LAB	lab(18.84, 0.58, -19.52)
CIE-LCH	lch(18.84, 19.53, 271.72°)
OKLab	oklab(30.02% -0.0172 -0.0552)
OKLCH	oklch(30.02% 0.058 252.7)
XYZ	xyz(2.6054, 2.7094, 6.8629)
Luminance	0.0271 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F4A #4A3217

analogous

#17494A #172F4A #19174A

triadic

#172F4A #4A172F #2F4A17

tetradic

#172F4A #4A1749 #4A3217 #174A19

square

#172F4A #4A1749 #4A3217 #174A19

split-complementary

#172F4A #4A1917 #494A17

monochromatic

#070F17 #08111B #172F4A #264D79 #346AA7

Accessibility & contrast

On white

13.62

#172F4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#172F4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F4A

13.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F4A	#FFFFFF	#000000	##FFFFFF
##172F4A	1.00	13.62	1.54	13.62
#FFFFFF	13.62	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23304B

Deuteranopia (green-blind)

#1D2C49

Tritanopia (blue-blind)

#003539

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #172f4a;
/* rgb */ color: rgb(23, 47, 74);
/* oklch */ color: oklch(30.0% 0.058 252.7);

Tailwind

colors: {
  custom: {
    50: '#5a677c',
    500: '#172f4a',
    950: '#000000',
  },
}

SCSS

$custom: #172f4a;
$custom-light: #5a677c;
$custom-dark: #000000;

JSON

{
  "hex": "#172f4a",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 74
  },
  "hsl": {
    "h": 211.765,
    "s": 52.577,
    "l": 19.02
  },
  "oklch": {
    "l": 0.30019,
    "c": 0.05782,
    "h": 252.7
  },
  "luminance": 0.0271
}

Semantic roles & 50–950 ramp

primary

#172F4A

secondary

#81603C

accent

#984CDC

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#040609

muted

#797A7B

Preview Lab

Preview with #172F4A

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

Preview Lab → · Contrast checker → · Palette generator →