#3161B3#3161B3

#3161B3 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.3% C 0.140 H 260.4°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#3161B3
RGB	rgb(49, 97, 179)
HSL	hsl(218, 57%, 45%)
HSV	hsv(218, 73%, 70%)
CMYK	cmyk(72.6%, 45.8%, 0%, 29.8%)
CIE-LAB	lab(41.93, 12.30, -48.34)
CIE-LCH	lch(41.93, 49.88, 284.27°)
OKLab	oklab(50.33% -0.0235 -0.1385)
OKLCH	oklch(50.33% 0.14 260.4)
XYZ	xyz(13.6751, 12.4556, 44.3225)
Luminance	0.1246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3161B3 #B38331

analogous

#31A2B3 #3161B3 #4231B3

triadic

#3161B3 #B33161 #61B331

tetradic

#3161B3 #B331A2 #B38331 #31B342

square

#3161B3 #B331A2 #B38331 #31B342

split-complementary

#3161B3 #B34231 #A2B331

monochromatic

#172D53 #244783 #3161B3 #5280D0 #82A3DD

Accessibility & contrast

On white

6.01

#3161B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#3161B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3161B3

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3161B3	#FFFFFF	#000000	##FFFFFF
##3161B3	1.00	6.01	3.49	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3769B6

Deuteranopia (green-blind)

#1C5DB1

Tritanopia (blue-blind)

#007481

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3161b3;
/* rgb */ color: rgb(49, 97, 179);
/* oklch */ color: oklch(50.3% 0.140 260.4);

Tailwind

colors: {
  custom: {
    50: '#7a8dca',
    500: '#3161b3',
    950: '#000000',
  },
}

SCSS

$custom: #3161b3;
$custom-light: #7a8dca;
$custom-dark: #000000;

JSON

{
  "hex": "#3161b3",
  "rgb": {
    "r": 49,
    "g": 97,
    "b": 179
  },
  "hsl": {
    "h": 217.846,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.5033,
    "c": 0.14047,
    "h": 260.4
  },
  "luminance": 0.12457
}

Semantic roles & 50–950 ramp

primary

#3161B3

secondary

#C6AA7A

accent

#A848E0

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3161B3

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

Preview Lab → · Contrast checker → · Palette generator →