#163A8D#163A8D

#163A8D is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.9% C 0.144 H 263.4°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#163A8D
RGB	rgb(22, 58, 141)
HSL	hsl(222, 73%, 32%)
HSV	hsv(222, 84%, 55%)
CMYK	cmyk(84.4%, 58.9%, 0%, 44.7%)
CIE-LAB	lab(27.07, 20.38, -49.55)
CIE-LCH	lch(27.07, 53.58, 292.35°)
OKLab	oklab(37.86% -0.0166 -0.1432)
OKLCH	oklch(37.86% 0.144 263.4)
XYZ	xyz(6.6499, 5.1190, 25.8317)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#163A8D #8D6916

analogous

#16768D #163A8D #2E168D

triadic

#163A8D #8D163A #3A8D16

tetradic

#163A8D #8D1676 #8D6916 #168D2E

square

#163A8D #8D1676 #8D6916 #168D2E

split-complementary

#163A8D #8D2E16 #768D16

monochromatic

#050E23 #0E2458 #163A8D #1E50C2 #3D6EE1

Accessibility & contrast

On white

10.38

#163A8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#163A8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #163A8D

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##163A8D	#FFFFFF	#000000	##FFFFFF
##163A8D	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004690

Deuteranopia (green-blind)

#003B8B

Tritanopia (blue-blind)

#004F5D

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #163a8d;
/* rgb */ color: rgb(22, 58, 141);
/* oklch */ color: oklch(37.9% 0.144 263.4);

Tailwind

colors: {
  custom: {
    50: '#6a6faf',
    500: '#163a8d',
    950: '#000000',
  },
}

SCSS

$custom: #163a8d;
$custom-light: #6a6faf;
$custom-dark: #000000;

JSON

{
  "hex": "#163a8d",
  "rgb": {
    "r": 22,
    "g": 58,
    "b": 141
  },
  "hsl": {
    "h": 221.849,
    "s": 73.006,
    "l": 31.961
  },
  "oklch": {
    "l": 0.37864,
    "c": 0.14416,
    "h": 263.4
  },
  "luminance": 0.0512
}

Semantic roles & 50–950 ramp

primary

#163A8D

secondary

#C1993E

accent

#B838F0

background

#F6F6FA

surface

#ECECF5

border

#C7C7CF

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #163A8D

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

Preview Lab → · Contrast checker → · Palette generator →