#3156B5#3156B5

#3156B5 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.1% C 0.157 H 265.0°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#3156B5
RGB	rgb(49, 86, 181)
HSL	hsl(223, 57%, 45%)
HSV	hsv(223, 73%, 71%)
CMYK	cmyk(72.9%, 52.5%, 0%, 29%)
CIE-LAB	lab(38.97, 20.21, -54.28)
CIE-LCH	lch(38.97, 57.92, 290.42°)
OKLab	oklab(48.11% -0.0137 -0.1562)
OKLCH	oklch(48.11% 0.157 265)
XYZ	xyz(12.9320, 10.6434, 45.0799)
Luminance	0.1065 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3156B5 #B59031

analogous

#3198B5 #3156B5 #4E31B5

triadic

#3156B5 #B53156 #56B531

tetradic

#3156B5 #B53198 #B59031 #31B54E

square

#3156B5 #B53198 #B59031 #31B54E

split-complementary

#3156B5 #B54E31 #98B531

monochromatic

#172855 #243F85 #3156B5 #5376D0 #839CDD

Accessibility & contrast

On white

6.71

#3156B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#3156B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3156B5

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3156B5	#FFFFFF	#000000	##FFFFFF
##3156B5	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1662B8

Deuteranopia (green-blind)

#0056B3

Tritanopia (blue-blind)

#006D7D

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3156b5;
/* rgb */ color: rgb(49, 86, 181);
/* oklch */ color: oklch(48.1% 0.157 265.0);

Tailwind

colors: {
  custom: {
    50: '#7b85cc',
    500: '#3156b5',
    950: '#000000',
  },
}

SCSS

$custom: #3156b5;
$custom-light: #7b85cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3156b5",
  "rgb": {
    "r": 49,
    "g": 86,
    "b": 181
  },
  "hsl": {
    "h": 223.182,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.48111,
    "c": 0.15676,
    "h": 265
  },
  "luminance": 0.10645
}

Semantic roles & 50–950 ramp

primary

#3156B5

secondary

#C7B27B

accent

#B647E1

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3156B5

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

Preview Lab → · Contrast checker → · Palette generator →