#163F8B#163F8B

#163F8B is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.8% C 0.135 H 261.4°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#163F8B
RGB	rgb(22, 63, 139)
HSL	hsl(219, 73%, 32%)
HSV	hsv(219, 84%, 55%)
CMYK	cmyk(84.2%, 54.7%, 0%, 45.5%)
CIE-LAB	lab(28.35, 16.07, -46.24)
CIE-LCH	lch(28.35, 48.95, 289.16°)
OKLab	oklab(38.78% -0.0202 -0.1334)
OKLCH	oklch(38.78% 0.135 261.4)
XYZ	xyz(6.7669, 5.5888, 25.1432)
Luminance	0.0559 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#163F8B #8B6216

analogous

#167A8B #163F8B #27168B

triadic

#163F8B #8B163F #3F8B16

tetradic

#163F8B #8B167A #8B6216 #168B27

square

#163F8B #8B167A #8B6216 #168B27

split-complementary

#163F8B #8B2716 #7A8B16

monochromatic

#050F21 #0E2756 #163F8B #1E57C0 #3B75E0

Accessibility & contrast

On white

9.92

#163F8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#163F8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #163F8B

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##163F8B	#FFFFFF	#000000	##FFFFFF
##163F8B	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02488E

Deuteranopia (green-blind)

#003E8A

Tritanopia (blue-blind)

#00525E

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #163f8b;
/* rgb */ color: rgb(22, 63, 139);
/* oklch */ color: oklch(38.8% 0.135 261.4);

Tailwind

colors: {
  custom: {
    50: '#6973ad',
    500: '#163f8b',
    950: '#000000',
  },
}

SCSS

$custom: #163f8b;
$custom-light: #6973ad;
$custom-dark: #000000;

JSON

{
  "hex": "#163f8b",
  "rgb": {
    "r": 22,
    "g": 63,
    "b": 139
  },
  "hsl": {
    "h": 218.974,
    "s": 72.671,
    "l": 31.569
  },
  "oklch": {
    "l": 0.38781,
    "c": 0.13488,
    "h": 261.4
  },
  "luminance": 0.0559
}

Semantic roles & 50–950 ramp

primary

#163F8B

secondary

#BF923E

accent

#AF38EF

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #163F8B

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

Preview Lab → · Contrast checker → · Palette generator →