#172A72#172A72

#172A72 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.0% C 0.126 H 267.3°. Best body text is #FFFFFF at 13.04:1 contrast (WCAG AA passes).

Color values

HEX	#172A72
RGB	rgb(23, 42, 114)
HSL	hsl(227, 66%, 27%)
HSV	hsv(227, 80%, 45%)
CMYK	cmyk(79.8%, 63.2%, 0%, 55.3%)
CIE-LAB	lab(20.25, 20.75, -43.65)
CIE-LCH	lch(20.25, 48.34, 295.43°)
OKLab	oklab(32.04% -0.0059 -0.1261)
OKLCH	oklch(32.04% 0.126 267.3)
XYZ	xyz(4.2175, 3.0525, 16.2832)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172A72 #725F17

analogous

#175872 #172A72 #321772

triadic

#172A72 #72172A #2A7217

tetradic

#172A72 #721758 #725F17 #177232

square

#172A72 #721758 #725F17 #177232

split-complementary

#172A72 #723217 #587217

monochromatic

#050919 #0D173F #172A72 #213DA5 #2E51D5

Accessibility & contrast

On white

13.04

#172A72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#172A72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172A72

13.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172A72	#FFFFFF	#000000	##FFFFFF
##172A72	1.00	13.04	1.61	13.04
#FFFFFF	13.04	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003574

Deuteranopia (green-blind)

#002D71

Tritanopia (blue-blind)

#003C49

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #172a72;
/* rgb */ color: rgb(23, 42, 114);
/* oklch */ color: oklch(32.0% 0.126 267.3);

Tailwind

colors: {
  custom: {
    50: '#64639b',
    500: '#172a72',
    950: '#000000',
  },
}

SCSS

$custom: #172a72;
$custom-light: #64639b;
$custom-dark: #000000;

JSON

{
  "hex": "#172a72",
  "rgb": {
    "r": 23,
    "g": 42,
    "b": 114
  },
  "hsl": {
    "h": 227.473,
    "s": 66.423,
    "l": 26.863
  },
  "oklch": {
    "l": 0.32043,
    "c": 0.12628,
    "h": 267.3
  },
  "luminance": 0.03053
}

Semantic roles & 50–950 ramp

primary

#172A72

secondary

#A8913D

accent

#C63EE9

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #172A72

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

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