#163D81#163D81

#163D81 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.5% C 0.123 H 260.7°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#163D81
RGB	rgb(22, 61, 129)
HSL	hsl(218, 71%, 30%)
HSV	hsv(218, 83%, 51%)
CMYK	cmyk(82.9%, 52.7%, 0%, 49.4%)
CIE-LAB	lab(27.00, 13.32, -42.21)
CIE-LCH	lch(27.00, 44.26, 287.51°)
OKLab	oklab(37.51% -0.0199 -0.1216)
OKLCH	oklch(37.51% 0.123 260.7)
XYZ	xyz(5.9606, 5.0923, 21.4334)
Luminance	0.0509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#163D81 #815A16

analogous

#167381 #163D81 #251681

triadic

#163D81 #81163D #3D8116

tetradic

#163D81 #811673 #815A16 #168125

square

#163D81 #811673 #815A16 #168125

split-complementary

#163D81 #812516 #738116

monochromatic

#040C1A #0D244D #163D81 #1F56B5 #3572DD

Accessibility & contrast

On white

10.40

#163D81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#163D81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #163D81

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##163D81	#FFFFFF	#000000	##FFFFFF
##163D81	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#104583

Deuteranopia (green-blind)

#003B80

Tritanopia (blue-blind)

#004E59

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #163d81;
/* rgb */ color: rgb(22, 61, 129);
/* oklch */ color: oklch(37.5% 0.123 260.7);

Tailwind

colors: {
  custom: {
    50: '#6671a6',
    500: '#163d81',
    950: '#000000',
  },
}

SCSS

$custom: #163d81;
$custom-light: #6671a6;
$custom-dark: #000000;

JSON

{
  "hex": "#163d81",
  "rgb": {
    "r": 22,
    "g": 61,
    "b": 129
  },
  "hsl": {
    "h": 218.131,
    "s": 70.861,
    "l": 29.608
  },
  "oklch": {
    "l": 0.37508,
    "c": 0.12319,
    "h": 260.7
  },
  "luminance": 0.05093
}

Semantic roles & 50–950 ramp

primary

#163D81

secondary

#B68A3D

accent

#AC3AEE

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #163D81

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

Preview Lab → · Contrast checker → · Palette generator →