#3156B3#3156B3

#3156B3 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.0% C 0.154 H 264.8°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#3156B3
RGB	rgb(49, 86, 179)
HSL	hsl(223, 57%, 45%)
HSV	hsv(223, 73%, 70%)
CMYK	cmyk(72.6%, 52%, 0%, 29.8%)
CIE-LAB	lab(38.83, 19.46, -53.33)
CIE-LCH	lch(38.83, 56.77, 290.05°)
OKLab	oklab(47.96% -0.0139 -0.1534)
OKLCH	oklch(47.96% 0.154 264.8)
XYZ	xyz(12.7282, 10.5619, 44.0069)
Luminance	0.1056 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3156B3 #B38E31

analogous

#3197B3 #3156B3 #4D31B3

triadic

#3156B3 #B33156 #56B331

tetradic

#3156B3 #B33197 #B38E31 #31B34D

square

#3156B3 #B33197 #B38E31 #31B34D

split-complementary

#3156B3 #B34D31 #97B331

monochromatic

#172853 #243F83 #3156B3 #5275D0 #829CDD

Accessibility & contrast

On white

6.75

#3156B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3156B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3156B3

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3156B3	#FFFFFF	#000000	##FFFFFF
##3156B3	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A62B6

Deuteranopia (green-blind)

#0056B1

Tritanopia (blue-blind)

#006C7C

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3156b3;
/* rgb */ color: rgb(49, 86, 179);
/* oklch */ color: oklch(48.0% 0.154 264.8);

Tailwind

colors: {
  custom: {
    50: '#7a85ca',
    500: '#3156b3',
    950: '#000000',
  },
}

SCSS

$custom: #3156b3;
$custom-light: #7a85ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3156b3",
  "rgb": {
    "r": 49,
    "g": 86,
    "b": 179
  },
  "hsl": {
    "h": 222.923,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.4796,
    "c": 0.15399,
    "h": 264.8
  },
  "luminance": 0.10563
}

Semantic roles & 50–950 ramp

primary

#3156B3

secondary

#C6B07A

accent

#B548E0

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3156B3

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

Preview Lab → · Contrast checker → · Palette generator →