#172A76#172A76

#172A76 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.4% C 0.132 H 267.4°. Best body text is #FFFFFF at 12.89:1 contrast (WCAG AA passes).

Color values

HEX	#172A76
RGB	rgb(23, 42, 118)
HSL	hsl(228, 67%, 28%)
HSV	hsv(228, 81%, 46%)
CMYK	cmyk(80.5%, 64.4%, 0%, 53.7%)
CIE-LAB	lab(20.62, 22.38, -45.62)
CIE-LCH	lch(20.62, 50.82, 296.13°)
OKLab	oklab(32.43% -0.0059 -0.1319)
OKLCH	oklch(32.43% 0.132 267.4)
XYZ	xyz(4.4502, 3.1456, 17.5086)
Luminance	0.0315 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172A76 #766317

analogous

#175976 #172A76 #331776

triadic

#172A76 #76172A #2A7617

tetradic

#172A76 #761759 #766317 #177633

square

#172A76 #761759 #766317 #177633

split-complementary

#172A76 #763317 #597617

monochromatic

#05091A #0D1843 #172A76 #213CA9 #3152D7

Accessibility & contrast

On white

12.89

#172A76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#172A76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172A76

12.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172A76	#FFFFFF	#000000	##FFFFFF
##172A76	1.00	12.89	1.63	12.89
#FFFFFF	12.89	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003678

Deuteranopia (green-blind)

#002D75

Tritanopia (blue-blind)

#003E4B

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #172a76;
/* rgb */ color: rgb(23, 42, 118);
/* oklch */ color: oklch(32.4% 0.132 267.4);

Tailwind

colors: {
  custom: {
    50: '#65639e',
    500: '#172a76',
    950: '#000000',
  },
}

SCSS

$custom: #172a76;
$custom-light: #65639e;
$custom-dark: #000000;

JSON

{
  "hex": "#172a76",
  "rgb": {
    "r": 23,
    "g": 42,
    "b": 118
  },
  "hsl": {
    "h": 228,
    "s": 67.376,
    "l": 27.647
  },
  "oklch": {
    "l": 0.32427,
    "c": 0.13204,
    "h": 267.4
  },
  "luminance": 0.03146
}

Semantic roles & 50–950 ramp

primary

#172A76

secondary

#AB953E

accent

#C83EEA

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #172A76

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

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