#3156A8#3156A8

#3156A8 is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.1% C 0.139 H 263.7°. Best body text is #FFFFFF at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#3156A8
RGB	rgb(49, 86, 168)
HSL	hsl(221, 55%, 43%)
HSV	hsv(221, 71%, 66%)
CMYK	cmyk(70.8%, 48.8%, 0%, 34.1%)
CIE-LAB	lab(38.08, 15.32, -48.03)
CIE-LCH	lch(38.08, 50.42, 287.69°)
OKLab	oklab(47.15% -0.0153 -0.1378)
OKLCH	oklch(47.15% 0.139 263.7)
XYZ	xyz(11.6598, 10.1345, 38.3799)
Luminance	0.1014 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3156A8 #A88331

analogous

#3191A8 #3156A8 #4831A8

triadic

#3156A8 #A83156 #56A831

tetradic

#3156A8 #A83191 #A88331 #31A848

square

#3156A8 #A83191 #A88331 #31A848

split-complementary

#3156A8 #A84831 #91A831

monochromatic

#152549 #233E79 #3156A8 #4C73CB #7B98D8

Accessibility & contrast

On white

6.94

#3156A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#3156A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3156A8

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3156A8	#FFFFFF	#000000	##FFFFFF
##3156A8	1.00	6.94	3.03	6.94
#FFFFFF	6.94	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#295FAB

Deuteranopia (green-blind)

#0755A6

Tritanopia (blue-blind)

#006977

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3156a8;
/* rgb */ color: rgb(49, 86, 168);
/* oklch */ color: oklch(47.1% 0.139 263.7);

Tailwind

colors: {
  custom: {
    50: '#7885c2',
    500: '#3156a8',
    950: '#000000',
  },
}

SCSS

$custom: #3156a8;
$custom-light: #7885c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3156a8",
  "rgb": {
    "r": 49,
    "g": 86,
    "b": 168
  },
  "hsl": {
    "h": 221.345,
    "s": 54.839,
    "l": 42.549
  },
  "oklch": {
    "l": 0.47149,
    "c": 0.13861,
    "h": 263.7
  },
  "luminance": 0.10136
}

Semantic roles & 50–950 ramp

primary

#3156A8

secondary

#C1A974

accent

#B04ADE

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3156A8

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

Preview Lab → · Contrast checker → · Palette generator →