#3163B5#3163B5

#3163B5 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 50.9% C 0.141 H 259.8°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#3163B5
RGB	rgb(49, 99, 181)
HSL	hsl(217, 57%, 45%)
HSV	hsv(217, 73%, 71%)
CMYK	cmyk(72.9%, 45.3%, 0%, 29%)
CIE-LAB	lab(42.63, 11.76, -48.39)
CIE-LCH	lch(42.63, 49.80, 283.66°)
OKLab	oklab(50.91% -0.0249 -0.1386)
OKLCH	oklch(50.91% 0.141 259.8)
XYZ	xyz(14.0659, 12.9113, 45.4579)
Luminance	0.1291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3163B5 #B58331

analogous

#31A5B5 #3163B5 #4131B5

triadic

#3163B5 #B53163 #63B531

tetradic

#3163B5 #B531A5 #B58331 #31B541

square

#3163B5 #B531A5 #B58331 #31B541

split-complementary

#3163B5 #B54131 #A5B531

monochromatic

#172E55 #244985 #3163B5 #5382D0 #83A5DD

Accessibility & contrast

On white

5.86

#3163B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#3163B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3163B5

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3163B5	#FFFFFF	#000000	##FFFFFF
##3163B5	1.00	5.86	3.58	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#396BB8

Deuteranopia (green-blind)

#1E5FB3

Tritanopia (blue-blind)

#007683

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3163b5;
/* rgb */ color: rgb(49, 99, 181);
/* oklch */ color: oklch(50.9% 0.141 259.8);

Tailwind

colors: {
  custom: {
    50: '#7a8ecc',
    500: '#3163b5',
    950: '#000000',
  },
}

SCSS

$custom: #3163b5;
$custom-light: #7a8ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#3163b5",
  "rgb": {
    "r": 49,
    "g": 99,
    "b": 181
  },
  "hsl": {
    "h": 217.273,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.50908,
    "c": 0.14082,
    "h": 259.8
  },
  "luminance": 0.12913
}

Semantic roles & 50–950 ramp

primary

#3163B5

secondary

#C7AA7B

accent

#A747E1

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3163B5

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

Preview Lab → · Contrast checker → · Palette generator →