#163381#163381

#163381 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.3% C 0.136 H 264.7°. Best body text is #FFFFFF at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#163381
RGB	rgb(22, 51, 129)
HSL	hsl(224, 71%, 30%)
HSV	hsv(224, 83%, 51%)
CMYK	cmyk(82.9%, 60.5%, 0%, 49.4%)
CIE-LAB	lab(24.07, 20.38, -46.96)
CIE-LCH	lch(24.07, 51.19, 293.46°)
OKLab	oklab(35.3% -0.0126 -0.1357)
OKLCH	oklch(35.3% 0.136 264.7)
XYZ	xyz(5.4757, 4.1226, 21.2718)
Luminance	0.0412 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#163381 #816416

analogous

#166981 #163381 #2E1681

triadic

#163381 #811633 #338116

tetradic

#163381 #811669 #816416 #16812E

square

#163381 #811669 #816416 #16812E

split-complementary

#163381 #812E16 #698116

monochromatic

#040A1A #0D1E4D #163381 #1F48B5 #3562DD

Accessibility & contrast

On white

11.51

#163381 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#163381 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #163381

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##163381	#FFFFFF	#000000	##FFFFFF
##163381	1.00	11.51	1.82	11.51
#FFFFFF	11.51	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E84

Deuteranopia (green-blind)

#00347F

Tritanopia (blue-blind)

#004754

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #163381;
/* rgb */ color: rgb(22, 51, 129);
/* oklch */ color: oklch(35.3% 0.136 264.7);

Tailwind

colors: {
  custom: {
    50: '#676aa6',
    500: '#163381',
    950: '#000000',
  },
}

SCSS

$custom: #163381;
$custom-light: #676aa6;
$custom-dark: #000000;

JSON

{
  "hex": "#163381",
  "rgb": {
    "r": 22,
    "g": 51,
    "b": 129
  },
  "hsl": {
    "h": 223.738,
    "s": 70.861,
    "l": 29.608
  },
  "oklch": {
    "l": 0.35295,
    "c": 0.13631,
    "h": 264.7
  },
  "luminance": 0.04123
}

Semantic roles & 50–950 ramp

primary

#163381

secondary

#B6953D

accent

#BD3AEE

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #163381

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

Preview Lab → · Contrast checker → · Palette generator →