#3161B5#3161B5

#3161B5 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.5% C 0.143 H 260.7°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#3161B5
RGB	rgb(49, 97, 181)
HSL	hsl(218, 57%, 45%)
HSV	hsv(218, 73%, 71%)
CMYK	cmyk(72.9%, 46.4%, 0%, 29%)
CIE-LAB	lab(42.06, 13.05, -49.31)
CIE-LCH	lch(42.06, 51.01, 284.82°)
OKLab	oklab(50.47% -0.0231 -0.1413)
OKLCH	oklch(50.47% 0.143 260.7)
XYZ	xyz(13.8788, 12.5370, 45.3956)
Luminance	0.1254 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3161B5 #B58531

analogous

#31A3B5 #3161B5 #4331B5

triadic

#3161B5 #B53161 #61B531

tetradic

#3161B5 #B531A3 #B58531 #31B543

square

#3161B5 #B531A3 #B58531 #31B543

split-complementary

#3161B5 #B54331 #A3B531

monochromatic

#172D55 #244785 #3161B5 #5380D0 #83A4DD

Accessibility & contrast

On white

5.99

#3161B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#3161B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3161B5

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3161B5	#FFFFFF	#000000	##FFFFFF
##3161B5	1.00	5.99	3.51	5.99
#FFFFFF	5.99	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#356AB8

Deuteranopia (green-blind)

#175EB3

Tritanopia (blue-blind)

#007582

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3161b5;
/* rgb */ color: rgb(49, 97, 181);
/* oklch */ color: oklch(50.5% 0.143 260.7);

Tailwind

colors: {
  custom: {
    50: '#7a8dcc',
    500: '#3161b5',
    950: '#000000',
  },
}

SCSS

$custom: #3161b5;
$custom-light: #7a8dcc;
$custom-dark: #000000;

JSON

{
  "hex": "#3161b5",
  "rgb": {
    "r": 49,
    "g": 97,
    "b": 181
  },
  "hsl": {
    "h": 218.182,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.50468,
    "c": 0.14322,
    "h": 260.7
  },
  "luminance": 0.12539
}

Semantic roles & 50–950 ramp

primary

#3161B5

secondary

#C7AB7B

accent

#A947E1

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3161B5

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

Preview Lab → · Contrast checker → · Palette generator →