#163583#163583

#163583 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 35.9% C 0.137 H 264.2°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).

Color values

HEX	#163583
RGB	rgb(22, 53, 131)
HSL	hsl(223, 71%, 30%)
HSV	hsv(223, 83%, 51%)
CMYK	cmyk(83.2%, 59.5%, 0%, 48.6%)
CIE-LAB	lab(24.81, 19.79, -47.01)
CIE-LCH	lch(24.81, 51.01, 292.83°)
OKLab	oklab(35.9% -0.0139 -0.1358)
OKLCH	oklch(35.9% 0.137 264.2)
XYZ	xyz(5.6993, 4.3548, 22.0085)
Luminance	0.0435 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#163583 #836416

analogous

#166B83 #163583 #2E1683

triadic

#163583 #831635 #358316

tetradic

#163583 #83166B #836416 #16832E

square

#163583 #83166B #836416 #16832E

split-complementary

#163583 #832E16 #6B8316

monochromatic

#040B1A #0D204F #163583 #1F4AB7 #3666DD

Accessibility & contrast

On white

11.22

#163583 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#163583 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #163583

11.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##163583	#FFFFFF	#000000	##FFFFFF
##163583	1.00	11.22	1.87	11.22
#FFFFFF	11.22	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004086

Deuteranopia (green-blind)

#003681

Tritanopia (blue-blind)

#004956

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #163583;
/* rgb */ color: rgb(22, 53, 131);
/* oklch */ color: oklch(35.9% 0.137 264.2);

Tailwind

colors: {
  custom: {
    50: '#676ba8',
    500: '#163583',
    950: '#000000',
  },
}

SCSS

$custom: #163583;
$custom-light: #676ba8;
$custom-dark: #000000;

JSON

{
  "hex": "#163583",
  "rgb": {
    "r": 22,
    "g": 53,
    "b": 131
  },
  "hsl": {
    "h": 222.936,
    "s": 71.242,
    "l": 30
  },
  "oklch": {
    "l": 0.35902,
    "c": 0.13654,
    "h": 264.2
  },
  "luminance": 0.04355
}

Semantic roles & 50–950 ramp

primary

#163583

secondary

#B7953D

accent

#BB3AEE

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #163583

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

Preview Lab → · Contrast checker → · Palette generator →