#172E79#172E79

#172E79 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.5% C 0.131 H 266.2°. Best body text is #FFFFFF at 12.33:1 contrast (WCAG AA passes).

Color values

HEX	#172E79
RGB	rgb(23, 46, 121)
HSL	hsl(226, 68%, 28%)
HSV	hsv(226, 81%, 47%)
CMYK	cmyk(81%, 62%, 0%, 52.5%)
CIE-LAB	lab(22.00, 20.76, -45.28)
CIE-LCH	lch(22.00, 49.81, 294.63°)
OKLab	oklab(33.54% -0.0087 -0.1308)
OKLCH	oklch(33.54% 0.131 266.2)
XYZ	xyz(4.7803, 3.5161, 18.5122)
Luminance	0.0352 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172E79 #796217

analogous

#175F79 #172E79 #311779

triadic

#172E79 #79172E #2E7917

tetradic

#172E79 #79175F #796217 #177931

square

#172E79 #79175F #796217 #177931

split-complementary

#172E79 #793117 #5F7917

monochromatic

#050A1A #0D1A46 #172E79 #2142AC #3259D8

Accessibility & contrast

On white

12.33

#172E79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#172E79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172E79

12.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172E79	#FFFFFF	#000000	##FFFFFF
##172E79	1.00	12.33	1.70	12.33
#FFFFFF	12.33	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00397B

Deuteranopia (green-blind)

#003078

Tritanopia (blue-blind)

#00414E

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #172e79;
/* rgb */ color: rgb(23, 46, 121);
/* oklch */ color: oklch(33.5% 0.131 266.2);

Tailwind

colors: {
  custom: {
    50: '#6666a0',
    500: '#172e79',
    950: '#000000',
  },
}

SCSS

$custom: #172e79;
$custom-light: #6666a0;
$custom-dark: #000000;

JSON

{
  "hex": "#172e79",
  "rgb": {
    "r": 23,
    "g": 46,
    "b": 121
  },
  "hsl": {
    "h": 225.918,
    "s": 68.056,
    "l": 28.235
  },
  "oklch": {
    "l": 0.33541,
    "c": 0.13113,
    "h": 266.2
  },
  "luminance": 0.03517
}

Semantic roles & 50–950 ramp

primary

#172E79

secondary

#AE943E

accent

#C23DEB

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07050F

muted

#7A7A7E

Preview Lab

Preview with #172E79

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

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