#163B8A#163B8A

#163B8A is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.8% C 0.139 H 262.7°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#163B8A
RGB	rgb(22, 59, 138)
HSL	hsl(221, 73%, 31%)
HSV	hsv(221, 84%, 54%)
CMYK	cmyk(84.1%, 57.2%, 0%, 45.9%)
CIE-LAB	lab(27.11, 18.45, -47.63)
CIE-LCH	lch(27.11, 51.08, 291.17°)
OKLab	oklab(37.82% -0.0175 -0.1375)
OKLCH	oklch(37.82% 0.139 262.7)
XYZ	xyz(6.4806, 5.1327, 24.6890)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#163B8A #8A6516

analogous

#16758A #163B8A #2B168A

triadic

#163B8A #8A163B #3B8A16

tetradic

#163B8A #8A1675 #8A6516 #168A2B

square

#163B8A #8A1675 #8A6516 #168A2B

split-complementary

#163B8A #8A2B16 #758A16

monochromatic

#050E20 #0E2455 #163B8A #1E52BF #3B6FE0

Accessibility & contrast

On white

10.36

#163B8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#163B8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #163B8A

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##163B8A	#FFFFFF	#000000	##FFFFFF
##163B8A	1.00	10.36	2.03	10.36
#FFFFFF	10.36	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468D

Deuteranopia (green-blind)

#003B88

Tritanopia (blue-blind)

#004F5C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #163b8a;
/* rgb */ color: rgb(22, 59, 138);
/* oklch */ color: oklch(37.8% 0.139 262.7);

Tailwind

colors: {
  custom: {
    50: '#6970ad',
    500: '#163b8a',
    950: '#000000',
  },
}

SCSS

$custom: #163b8a;
$custom-light: #6970ad;
$custom-dark: #000000;

JSON

{
  "hex": "#163b8a",
  "rgb": {
    "r": 22,
    "g": 59,
    "b": 138
  },
  "hsl": {
    "h": 220.862,
    "s": 72.5,
    "l": 31.373
  },
  "oklch": {
    "l": 0.37815,
    "c": 0.13865,
    "h": 262.7
  },
  "luminance": 0.05133
}

Semantic roles & 50–950 ramp

primary

#163B8A

secondary

#BE953E

accent

#B539EF

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #163B8A

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

Preview Lab → · Contrast checker → · Palette generator →