#3163BB#3163BB

#3163BB is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.3% C 0.149 H 260.8°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#3163BB
RGB	rgb(49, 99, 187)
HSL	hsl(218, 58%, 46%)
HSV	hsv(218, 74%, 73%)
CMYK	cmyk(73.8%, 47.1%, 0%, 26.7%)
CIE-LAB	lab(43.01, 14.01, -51.29)
CIE-LCH	lch(43.01, 53.17, 285.28°)
OKLab	oklab(51.32% -0.0239 -0.1471)
OKLCH	oklch(51.32% 0.149 260.8)
XYZ	xyz(14.6949, 13.1629, 48.7703)
Luminance	0.1316 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3163BB #BB8931

analogous

#31A8BB #3163BB #4431BB

triadic

#3163BB #BB3163 #63BB31

tetradic

#3163BB #BB31A8 #BB8931 #31BB44

square

#3163BB #BB31A8 #BB8931 #31BB44

split-complementary

#3163BB #BB4431 #A8BB31

monochromatic

#18305A #24498B #3163BB #5683D3 #87A7E0

Accessibility & contrast

On white

5.78

#3163BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#3163BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3163BB

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3163BB	#FFFFFF	#000000	##FFFFFF
##3163BB	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#346CBE

Deuteranopia (green-blind)

#1060B9

Tritanopia (blue-blind)

#007886

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3163bb;
/* rgb */ color: rgb(49, 99, 187);
/* oklch */ color: oklch(51.3% 0.149 260.8);

Tailwind

colors: {
  custom: {
    50: '#7b8ed0',
    500: '#3163bb',
    950: '#000000',
  },
}

SCSS

$custom: #3163bb;
$custom-light: #7b8ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#3163bb",
  "rgb": {
    "r": 49,
    "g": 99,
    "b": 187
  },
  "hsl": {
    "h": 218.261,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.51321,
    "c": 0.14904,
    "h": 260.8
  },
  "luminance": 0.13165
}

Semantic roles & 50–950 ramp

primary

#3163BB

secondary

#C9AE7F

accent

#A946E2

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3163BB

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

Preview Lab → · Contrast checker → · Palette generator →