#3156B4#3156B4

#3156B4 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.0% C 0.155 H 264.9°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#3156B4
RGB	rgb(49, 86, 180)
HSL	hsl(223, 57%, 45%)
HSV	hsv(223, 73%, 71%)
CMYK	cmyk(72.8%, 52.2%, 0%, 29.4%)
CIE-LAB	lab(38.90, 19.84, -53.81)
CIE-LCH	lch(38.90, 57.35, 290.24°)
OKLab	oklab(48.04% -0.0138 -0.1548)
OKLCH	oklch(48.04% 0.155 264.9)
XYZ	xyz(12.8297, 10.6025, 44.5415)
Luminance	0.1060 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3156B4 #B48F31

analogous

#3198B4 #3156B4 #4D31B4

triadic

#3156B4 #B43156 #56B431

tetradic

#3156B4 #B43198 #B48F31 #31B44D

square

#3156B4 #B43198 #B48F31 #31B44D

split-complementary

#3156B4 #B44D31 #98B431

monochromatic

#172854 #243F84 #3156B4 #5276D0 #829CDD

Accessibility & contrast

On white

6.73

#3156B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#3156B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3156B4

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3156B4	#FFFFFF	#000000	##FFFFFF
##3156B4	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1862B7

Deuteranopia (green-blind)

#0056B2

Tritanopia (blue-blind)

#006D7C

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3156b4;
/* rgb */ color: rgb(49, 86, 180);
/* oklch */ color: oklch(48.0% 0.155 264.9);

Tailwind

colors: {
  custom: {
    50: '#7a85cb',
    500: '#3156b4',
    950: '#000000',
  },
}

SCSS

$custom: #3156b4;
$custom-light: #7a85cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3156b4",
  "rgb": {
    "r": 49,
    "g": 86,
    "b": 180
  },
  "hsl": {
    "h": 223.053,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.48035,
    "c": 0.15537,
    "h": 264.9
  },
  "luminance": 0.10604
}

Semantic roles & 50–950 ramp

primary

#3156B4

secondary

#C6B17B

accent

#B547E0

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3156B4

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

Preview Lab → · Contrast checker → · Palette generator →