#172A48#172A48

#172A48 is a dark, moderate blue. Relative luminance 0.023; OKLCH L 28.6% C 0.061 H 259.2°. Best body text is #FFFFFF at 14.37:1 contrast (WCAG AA passes).

Color values

HEX	#172A48
RGB	rgb(23, 42, 72)
HSL	hsl(217, 52%, 19%)
HSV	hsv(217, 68%, 28%)
CMYK	cmyk(68.1%, 41.7%, 0%, 71.8%)
CIE-LAB	lab(17.02, 3.36, -21.04)
CIE-LCH	lch(17.02, 21.31, 279.08°)
OKLab	oklab(28.56% -0.0114 -0.0597)
OKLCH	oklch(28.56% 0.061 259.2)
XYZ	xyz(2.3506, 2.3058, 6.4508)
Luminance	0.0231 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172A48 #483517

analogous

#174248 #172A48 #1C1748

triadic

#172A48 #48172A #2A4817

tetradic

#172A48 #481742 #483517 #17481C

square

#172A48 #481742 #483517 #17481C

split-complementary

#172A48 #481C17 #424817

monochromatic

#070E17 #080F1A #172A48 #264576 #3560A5

Accessibility & contrast

On white

14.37

#172A48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#172A48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172A48

14.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172A48	#FFFFFF	#000000	##FFFFFF
##172A48	1.00	14.37	1.46	14.37
#FFFFFF	14.37	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D2C49

Deuteranopia (green-blind)

#172847

Tritanopia (blue-blind)

#003135

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #172a48;
/* rgb */ color: rgb(23, 42, 72);
/* oklch */ color: oklch(28.6% 0.061 259.2);

Tailwind

colors: {
  custom: {
    50: '#59637b',
    500: '#172a48',
    950: '#000000',
  },
}

SCSS

$custom: #172a48;
$custom-light: #59637b;
$custom-dark: #000000;

JSON

{
  "hex": "#172a48",
  "rgb": {
    "r": 23,
    "g": 42,
    "b": 72
  },
  "hsl": {
    "h": 216.735,
    "s": 51.579,
    "l": 18.627
  },
  "oklch": {
    "l": 0.28556,
    "c": 0.06078,
    "h": 259.2
  },
  "luminance": 0.02306
}

Semantic roles & 50–950 ramp

primary

#172A48

secondary

#7F653C

accent

#A44DDB

background

#F5F5F7

surface

#E9EAEE

border

#C5C6C9

text

#040509

muted

#79797B

Preview Lab

Preview with #172A48

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

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