#173483#173483

#173483 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.7% C 0.138 H 264.8°. Best body text is #FFFFFF at 11.32:1 contrast (WCAG AA passes).

Color values

HEX	#173483
RGB	rgb(23, 52, 131)
HSL	hsl(224, 70%, 30%)
HSV	hsv(224, 82%, 51%)
CMYK	cmyk(82.4%, 60.3%, 0%, 48.6%)
CIE-LAB	lab(24.56, 20.60, -47.41)
CIE-LCH	lch(24.56, 51.69, 293.48°)
OKLab	oklab(35.73% -0.0124 -0.137)
OKLCH	oklch(35.73% 0.138 264.8)
XYZ	xyz(5.6766, 4.2762, 21.9945)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173483 #836617

analogous

#176A83 #173483 #301783

triadic

#173483 #831734 #348317

tetradic

#173483 #83176A #836617 #178330

square

#173483 #83176A #836617 #178330

split-complementary

#173483 #833017 #6A8317

monochromatic

#050B1B #0E1F4F #173483 #2049B7 #3864DC

Accessibility & contrast

On white

11.32

#173483 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#173483 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173483

11.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173483	#FFFFFF	#000000	##FFFFFF
##173483	1.00	11.32	1.86	11.32
#FFFFFF	11.32	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004086

Deuteranopia (green-blind)

#003681

Tritanopia (blue-blind)

#004856

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #173483;
/* rgb */ color: rgb(23, 52, 131);
/* oklch */ color: oklch(35.7% 0.138 264.8);

Tailwind

colors: {
  custom: {
    50: '#686ba8',
    500: '#173483',
    950: '#000000',
  },
}

SCSS

$custom: #173483;
$custom-light: #686ba8;
$custom-dark: #000000;

JSON

{
  "hex": "#173483",
  "rgb": {
    "r": 23,
    "g": 52,
    "b": 131
  },
  "hsl": {
    "h": 223.889,
    "s": 70.13,
    "l": 30.196
  },
  "oklch": {
    "l": 0.35727,
    "c": 0.13757,
    "h": 264.8
  },
  "luminance": 0.04277
}

Semantic roles & 50–950 ramp

primary

#173483

secondary

#B7973F

accent

#BD3BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #173483

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

Preview Lab → · Contrast checker → · Palette generator →