#163781#163781

#163781 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.2% C 0.131 H 263.2°. Best body text is #FFFFFF at 11.07:1 contrast (WCAG AA passes).

Color values

HEX	#163781
RGB	rgb(22, 55, 129)
HSL	hsl(221, 71%, 30%)
HSV	hsv(221, 83%, 51%)
CMYK	cmyk(82.9%, 57.4%, 0%, 49.4%)
CIE-LAB	lab(25.22, 17.55, -45.09)
CIE-LCH	lch(25.22, 48.39, 291.27°)
OKLab	oklab(36.16% -0.0154 -0.1301)
OKLCH	oklch(36.16% 0.131 263.2)
XYZ	xyz(5.6581, 4.4873, 21.3325)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#163781 #816016

analogous

#166D81 #163781 #2A1681

triadic

#163781 #811637 #378116

tetradic

#163781 #81166D #816016 #16812A

square

#163781 #81166D #816016 #16812A

split-complementary

#163781 #812A16 #6D8116

monochromatic

#040B1A #0D214D #163781 #1F4DB5 #3569DD

Accessibility & contrast

On white

11.07

#163781 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#163781 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #163781

11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##163781	#FFFFFF	#000000	##FFFFFF
##163781	1.00	11.07	1.90	11.07
#FFFFFF	11.07	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004184

Deuteranopia (green-blind)

#003780

Tritanopia (blue-blind)

#004956

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #163781;
/* rgb */ color: rgb(22, 55, 129);
/* oklch */ color: oklch(36.2% 0.131 263.2);

Tailwind

colors: {
  custom: {
    50: '#676da6',
    500: '#163781',
    950: '#000000',
  },
}

SCSS

$custom: #163781;
$custom-light: #676da6;
$custom-dark: #000000;

JSON

{
  "hex": "#163781",
  "rgb": {
    "r": 22,
    "g": 55,
    "b": 129
  },
  "hsl": {
    "h": 221.495,
    "s": 70.861,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36159,
    "c": 0.13106,
    "h": 263.2
  },
  "luminance": 0.04488
}

Semantic roles & 50–950 ramp

primary

#163781

secondary

#B6903D

accent

#B63AEE

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #163781

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

Preview Lab → · Contrast checker → · Palette generator →