#163B81#163B81

#163B81 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.1% C 0.126 H 261.6°. Best body text is #FFFFFF at 10.62:1 contrast (WCAG AA passes).

Color values

HEX	#163B81
RGB	rgb(22, 59, 129)
HSL	hsl(219, 71%, 30%)
HSV	hsv(219, 83%, 51%)
CMYK	cmyk(82.9%, 54.3%, 0%, 49.4%)
CIE-LAB	lab(26.40, 14.73, -43.18)
CIE-LCH	lch(26.40, 45.62, 288.83°)
OKLab	oklab(37.05% -0.0184 -0.1244)
OKLCH	oklch(37.05% 0.126 261.6)
XYZ	xyz(5.8559, 4.8828, 21.3985)
Luminance	0.0488 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#163B81 #815C16

analogous

#167181 #163B81 #261681

triadic

#163B81 #81163B #3B8116

tetradic

#163B81 #811671 #815C16 #168126

square

#163B81 #811671 #815C16 #168126

split-complementary

#163B81 #812616 #718116

monochromatic

#040C1A #0D234D #163B81 #1F53B5 #356FDD

Accessibility & contrast

On white

10.62

#163B81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#163B81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #163B81

10.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##163B81	#FFFFFF	#000000	##FFFFFF
##163B81	1.00	10.62	1.98	10.62
#FFFFFF	10.62	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#084483

Deuteranopia (green-blind)

#003A80

Tritanopia (blue-blind)

#004C58

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #163b81;
/* rgb */ color: rgb(22, 59, 129);
/* oklch */ color: oklch(37.1% 0.126 261.6);

Tailwind

colors: {
  custom: {
    50: '#6670a6',
    500: '#163b81',
    950: '#000000',
  },
}

SCSS

$custom: #163b81;
$custom-light: #6670a6;
$custom-dark: #000000;

JSON

{
  "hex": "#163b81",
  "rgb": {
    "r": 22,
    "g": 59,
    "b": 129
  },
  "hsl": {
    "h": 219.252,
    "s": 70.861,
    "l": 29.608
  },
  "oklch": {
    "l": 0.37051,
    "c": 0.1258,
    "h": 261.6
  },
  "luminance": 0.04883
}

Semantic roles & 50–950 ramp

primary

#163B81

secondary

#B68C3D

accent

#B03AEE

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #163B81

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

Preview Lab → · Contrast checker → · Palette generator →