#163D8D#163D8D

#163D8D is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.5% C 0.140 H 262.4°. Best body text is #FFFFFF at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#163D8D
RGB	rgb(22, 61, 141)
HSL	hsl(220, 73%, 32%)
HSV	hsv(220, 84%, 55%)
CMYK	cmyk(84.4%, 56.7%, 0%, 44.7%)
CIE-LAB	lab(27.93, 18.28, -48.16)
CIE-LCH	lch(27.93, 51.51, 290.79°)
OKLab	oklab(38.51% -0.0186 -0.139)
OKLCH	oklch(38.51% 0.14 262.4)
XYZ	xyz(6.8056, 5.4303, 25.8836)
Luminance	0.0543 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#163D8D #8D6616

analogous

#16798D #163D8D #2B168D

triadic

#163D8D #8D163D #3D8D16

tetradic

#163D8D #8D1679 #8D6616 #168D2B

square

#163D8D #8D1679 #8D6616 #168D2B

split-complementary

#163D8D #8D2B16 #798D16

monochromatic

#050F23 #0E2658 #163D8D #1E54C2 #3D72E1

Accessibility & contrast

On white

10.07

#163D8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#163D8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #163D8D

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##163D8D	#FFFFFF	#000000	##FFFFFF
##163D8D	1.00	10.07	2.09	10.07
#FFFFFF	10.07	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004890

Deuteranopia (green-blind)

#003D8B

Tritanopia (blue-blind)

#00515F

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #163d8d;
/* rgb */ color: rgb(22, 61, 141);
/* oklch */ color: oklch(38.5% 0.140 262.4);

Tailwind

colors: {
  custom: {
    50: '#6a71af',
    500: '#163d8d',
    950: '#000000',
  },
}

SCSS

$custom: #163d8d;
$custom-light: #6a71af;
$custom-dark: #000000;

JSON

{
  "hex": "#163d8d",
  "rgb": {
    "r": 22,
    "g": 61,
    "b": 141
  },
  "hsl": {
    "h": 220.336,
    "s": 73.006,
    "l": 31.961
  },
  "oklch": {
    "l": 0.3851,
    "c": 0.14029,
    "h": 262.4
  },
  "luminance": 0.05431
}

Semantic roles & 50–950 ramp

primary

#163D8D

secondary

#C1963E

accent

#B438F0

background

#F6F6FA

surface

#ECECF5

border

#C7C7CF

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #163D8D

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

Preview Lab → · Contrast checker → · Palette generator →