#172E90#172E90

#172E90 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.8% C 0.163 H 266.8°. Best body text is #FFFFFF at 11.48:1 contrast (WCAG AA passes).

Color values

HEX	#172E90
RGB	rgb(23, 46, 144)
HSL	hsl(229, 72%, 33%)
HSV	hsv(229, 84%, 56%)
CMYK	cmyk(84%, 68.1%, 0%, 43.5%)
CIE-LAB	lab(24.16, 29.92, -56.17)
CIE-LCH	lch(24.16, 63.65, 298.04°)
OKLab	oklab(35.8% -0.0091 -0.1627)
OKLCH	oklch(35.8% 0.163 266.8)
XYZ	xyz(6.3626, 4.1490, 26.8456)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172E90 #907917

analogous

#176A90 #172E90 #3C1790

triadic

#172E90 #90172E #2E9017

tetradic

#172E90 #90176A #907917 #17903C

square

#172E90 #90176A #907917 #17903C

split-complementary

#172E90 #903C17 #6A9017

monochromatic

#060C26 #0F1D5B #172E90 #1F3FC5 #415FE1

Accessibility & contrast

On white

11.48

#172E90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#172E90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172E90

11.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172E90	#FFFFFF	#000000	##FFFFFF
##172E90	1.00	11.48	1.83	11.48
#FFFFFF	11.48	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F93

Deuteranopia (green-blind)

#00348E

Tritanopia (blue-blind)

#00495B

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #172e90;
/* rgb */ color: rgb(23, 46, 144);
/* oklch */ color: oklch(35.8% 0.163 266.8);

Tailwind

colors: {
  custom: {
    50: '#6c66b2',
    500: '#172e90',
    950: '#000000',
  },
}

SCSS

$custom: #172e90;
$custom-light: #6c66b2;
$custom-dark: #000000;

JSON

{
  "hex": "#172e90",
  "rgb": {
    "r": 23,
    "g": 46,
    "b": 144
  },
  "hsl": {
    "h": 228.595,
    "s": 72.455,
    "l": 32.745
  },
  "oklch": {
    "l": 0.35795,
    "c": 0.16298,
    "h": 266.8
  },
  "luminance": 0.0415
}

Semantic roles & 50–950 ramp

primary

#172E90

secondary

#C1A942

accent

#CC39EF

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #172E90

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

Preview Lab → · Contrast checker → · Palette generator →