#3163CC#3163CC

#3163CC is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.5% C 0.172 H 262.8°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#3163CC
RGB	rgb(49, 99, 204)
HSL	hsl(221, 61%, 50%)
HSV	hsv(221, 76%, 80%)
CMYK	cmyk(76%, 51.5%, 0%, 20%)
CIE-LAB	lab(44.14, 20.40, -59.30)
CIE-LCH	lch(44.14, 62.71, 288.98°)
OKLab	oklab(52.55% -0.0216 -0.1707)
OKLCH	oklch(52.55% 0.172 262.8)
XYZ	xyz(16.6236, 13.9344, 58.9285)
Luminance	0.1394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3163CC #CC9A31

analogous

#31B1CC #3163CC #4C31CC

triadic

#3163CC #CC3163 #63CC31

tetradic

#3163CC #CC31B1 #CC9A31 #31CC4C

square

#3163CC #CC31B1 #CC9A31 #31CC4C

split-complementary

#3163CC #CC4C31 #B1CC31

monochromatic

#193369 #254B9B #3163CC #6188D9 #92ADE5

Accessibility & contrast

On white

5.54

#3163CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#3163CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3163CC

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3163CC	#FFFFFF	#000000	##FFFFFF
##3163CC	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D70D0

Deuteranopia (green-blind)

#0062CA

Tritanopia (blue-blind)

#007C8E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3163cc;
/* rgb */ color: rgb(49, 99, 204);
/* oklch */ color: oklch(52.5% 0.172 262.8);

Tailwind

colors: {
  custom: {
    50: '#7f8edc',
    500: '#3163cc',
    950: '#000000',
  },
}

SCSS

$custom: #3163cc;
$custom-light: #7f8edc;
$custom-dark: #000000;

JSON

{
  "hex": "#3163cc",
  "rgb": {
    "r": 49,
    "g": 99,
    "b": 204
  },
  "hsl": {
    "h": 220.645,
    "s": 61.265,
    "l": 49.608
  },
  "oklch": {
    "l": 0.52547,
    "c": 0.17205,
    "h": 262.8
  },
  "luminance": 0.13936
}

Semantic roles & 50–950 ramp

primary

#3163CC

secondary

#D0B989

accent

#B043E4

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3163CC

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

Preview Lab → · Contrast checker → · Palette generator →