#3347BC#3347BC

#3347BC is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.8% C 0.184 H 269.9°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#3347BC
RGB	rgb(51, 71, 188)
HSL	hsl(231, 57%, 47%)
HSV	hsv(231, 73%, 74%)
CMYK	cmyk(72.9%, 62.2%, 0%, 26.3%)
CIE-LAB	lab(35.67, 32.84, -63.76)
CIE-LCH	lch(35.67, 71.72, 297.25°)
OKLab	oklab(45.84% -0.0002 -0.1842)
OKLCH	oklch(45.84% 0.184 269.9)
XYZ	xyz(12.6925, 8.8398, 48.6045)
Luminance	0.0884 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3347BC #BCA833

analogous

#338CBC #3347BC #6433BC

triadic

#3347BC #BC3347 #47BC33

tetradic

#3347BC #BC338C #BCA833 #33BC64

square

#3347BC #BC338C #BCA833 #33BC64

split-complementary

#3347BC #BC6433 #8CBC33

monochromatic

#19235C #26358C #3347BC #5A6CD2 #8A97DF

Accessibility & contrast

On white

7.59

#3347BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#3347BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3347BC

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3347BC	#FFFFFF	#000000	##FFFFFF
##3347BC	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC0

Deuteranopia (green-blind)

#004EBA

Tritanopia (blue-blind)

#00657B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3347bc;
/* rgb */ color: rgb(51, 71, 188);
/* oklch */ color: oklch(45.8% 0.184 269.9);

Tailwind

colors: {
  custom: {
    50: '#7e7ad1',
    500: '#3347bc',
    950: '#000000',
  },
}

SCSS

$custom: #3347bc;
$custom-light: #7e7ad1;
$custom-dark: #000000;

JSON

{
  "hex": "#3347bc",
  "rgb": {
    "r": 51,
    "g": 71,
    "b": 188
  },
  "hsl": {
    "h": 231.241,
    "s": 57.322,
    "l": 46.863
  },
  "oklch": {
    "l": 0.45836,
    "c": 0.18417,
    "h": 269.9
  },
  "luminance": 0.08841
}

Semantic roles & 50–950 ramp

primary

#3347BC

secondary

#C9BF81

accent

#CA47E1

background

#F8F7FD

surface

#EFEDFA

border

#CAC8D3

text

#0B0914

muted

#7C7B83

Preview Lab

Preview with #3347BC

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

Preview Lab → · Contrast checker → · Palette generator →