#163DB4#163DB4

#163DB4 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.1% C 0.193 H 264.7°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#163DB4
RGB	rgb(22, 61, 180)
HSL	hsl(225, 78%, 40%)
HSV	hsv(225, 88%, 71%)
CMYK	cmyk(87.8%, 66.1%, 0%, 29.4%)
CIE-LAB	lab(31.35, 33.77, -66.16)
CIE-LCH	lch(31.35, 74.28, 297.04°)
OKLab	oklab(42.12% -0.0176 -0.1918)
OKLCH	oklch(42.12% 0.193 264.7)
XYZ	xyz(10.2349, 6.8020, 43.9446)
Luminance	0.0680 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#163DB4 #B48D16

analogous

#168CB4 #163DB4 #3E16B4

triadic

#163DB4 #B4163D #3DB416

tetradic

#163DB4 #B4168C #B48D16 #16B43E

square

#163DB4 #B4168C #B48D16 #16B43E

split-complementary

#163DB4 #B43E16 #8CB416

monochromatic

#091847 #0F2B7D #163DB4 #2353E4 #5A7DEB

Accessibility & contrast

On white

8.90

#163DB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#163DB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #163DB4

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##163DB4	#FFFFFF	#000000	##FFFFFF
##163DB4	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B8

Deuteranopia (green-blind)

#0042B2

Tritanopia (blue-blind)

#005D73

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #163db4;
/* rgb */ color: rgb(22, 61, 180);
/* oklch */ color: oklch(42.1% 0.193 264.7);

Tailwind

colors: {
  custom: {
    50: '#7472cc',
    500: '#163db4',
    950: '#000000',
  },
}

SCSS

$custom: #163db4;
$custom-light: #7472cc;
$custom-dark: #000000;

JSON

{
  "hex": "#163db4",
  "rgb": {
    "r": 22,
    "g": 61,
    "b": 180
  },
  "hsl": {
    "h": 225.19,
    "s": 78.218,
    "l": 39.608
  },
  "oklch": {
    "l": 0.42119,
    "c": 0.1926,
    "h": 264.7
  },
  "luminance": 0.06803
}

Semantic roles & 50–950 ramp

primary

#163DB4

secondary

#CEB158

accent

#C533F5

background

#F7F6FC

surface

#EEECF9

border

#C9C7D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #163DB4

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

Preview Lab → · Contrast checker → · Palette generator →