#3161B1#3161B1

#3161B1 is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.2% C 0.138 H 260.0°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#3161B1
RGB	rgb(49, 97, 177)
HSL	hsl(218, 57%, 44%)
HSV	hsv(218, 72%, 69%)
CMYK	cmyk(72.3%, 45.2%, 0%, 30.6%)
CIE-LAB	lab(41.81, 11.55, -47.37)
CIE-LCH	lch(41.81, 48.76, 283.70°)
OKLab	oklab(50.19% -0.0238 -0.1356)
OKLCH	oklch(50.19% 0.138 260)
XYZ	xyz(13.4743, 12.3752, 43.2650)
Luminance	0.1238 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3161B1 #B18131

analogous

#31A1B1 #3161B1 #4131B1

triadic

#3161B1 #B13161 #61B131

tetradic

#3161B1 #B131A1 #B18131 #31B141

square

#3161B1 #B131A1 #B18131 #31B141

split-complementary

#3161B1 #B14131 #A1B131

monochromatic

#162C51 #244781 #3161B1 #5180CF #80A3DC

Accessibility & contrast

On white

6.04

#3161B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#3161B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3161B1

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3161B1	#FFFFFF	#000000	##FFFFFF
##3161B1	1.00	6.04	3.48	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3969B4

Deuteranopia (green-blind)

#1F5DAF

Tritanopia (blue-blind)

#007480

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3161b1;
/* rgb */ color: rgb(49, 97, 177);
/* oklch */ color: oklch(50.2% 0.138 260.0);

Tailwind

colors: {
  custom: {
    50: '#798dc9',
    500: '#3161b1',
    950: '#000000',
  },
}

SCSS

$custom: #3161b1;
$custom-light: #798dc9;
$custom-dark: #000000;

JSON

{
  "hex": "#3161b1",
  "rgb": {
    "r": 49,
    "g": 97,
    "b": 177
  },
  "hsl": {
    "h": 217.5,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.50194,
    "c": 0.13771,
    "h": 260
  },
  "luminance": 0.12377
}

Semantic roles & 50–950 ramp

primary

#3161B1

secondary

#C5A879

accent

#A748E0

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3161B1

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

Preview Lab → · Contrast checker → · Palette generator →