#3163B2#3163B2

#3163B2 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 50.7% C 0.137 H 259.3°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#3163B2
RGB	rgb(49, 99, 178)
HSL	hsl(217, 57%, 45%)
HSV	hsv(217, 72%, 70%)
CMYK	cmyk(72.5%, 44.4%, 0%, 30.2%)
CIE-LAB	lab(42.44, 10.63, -46.93)
CIE-LCH	lch(42.44, 48.12, 282.77°)
OKLab	oklab(50.71% -0.0255 -0.1343)
OKLCH	oklch(50.71% 0.137 259.3)
XYZ	xyz(13.7614, 12.7895, 43.8542)
Luminance	0.1279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3163B2 #B28031

analogous

#31A4B2 #3163B2 #4031B2

triadic

#3163B2 #B23163 #63B231

tetradic

#3163B2 #B231A4 #B28031 #31B240

square

#3163B2 #B231A4 #B28031 #31B240

split-complementary

#3163B2 #B24031 #A4B231

monochromatic

#172E52 #244882 #3163B2 #5182CF #81A4DC

Accessibility & contrast

On white

5.90

#3163B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#3163B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3163B2

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3163B2	#FFFFFF	#000000	##FFFFFF
##3163B2	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C6BB5

Deuteranopia (green-blind)

#235FB0

Tritanopia (blue-blind)

#007582

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3163b2;
/* rgb */ color: rgb(49, 99, 178);
/* oklch */ color: oklch(50.7% 0.137 259.3);

Tailwind

colors: {
  custom: {
    50: '#7a8ec9',
    500: '#3163b2',
    950: '#000000',
  },
}

SCSS

$custom: #3163b2;
$custom-light: #7a8ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#3163b2",
  "rgb": {
    "r": 49,
    "g": 99,
    "b": 178
  },
  "hsl": {
    "h": 216.744,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.50706,
    "c": 0.13671,
    "h": 259.3
  },
  "luminance": 0.12791
}

Semantic roles & 50–950 ramp

primary

#3163B2

secondary

#C5A879

accent

#A548E0

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3163B2

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

Preview Lab → · Contrast checker → · Palette generator →