#3347B7#3347B7

#3347B7 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.4% C 0.178 H 270.0°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#3347B7
RGB	rgb(51, 71, 183)
HSL	hsl(231, 56%, 46%)
HSV	hsv(231, 72%, 72%)
CMYK	cmyk(72.1%, 61.2%, 0%, 28.2%)
CIE-LAB	lab(35.26, 31.02, -61.49)
CIE-LCH	lch(35.26, 68.88, 296.77°)
OKLab	oklab(45.4% -0.0001 -0.1775)
OKLCH	oklch(45.4% 0.178 270)
XYZ	xyz(12.1628, 8.6279, 45.8149)
Luminance	0.0863 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3347B7 #B7A333

analogous

#3389B7 #3347B7 #6133B7

triadic

#3347B7 #B73347 #47B733

tetradic

#3347B7 #B73389 #B7A333 #33B761

square

#3347B7 #B73389 #B7A333 #33B761

split-complementary

#3347B7 #B76133 #89B733

monochromatic

#182257 #263487 #3347B7 #5769D0 #8794DE

Accessibility & contrast

On white

7.70

#3347B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#3347B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3347B7

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3347B7	#FFFFFF	#000000	##FFFFFF
##3347B7	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BB

Deuteranopia (green-blind)

#004DB5

Tritanopia (blue-blind)

#006378

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3347b7;
/* rgb */ color: rgb(51, 71, 183);
/* oklch */ color: oklch(45.4% 0.178 270.0);

Tailwind

colors: {
  custom: {
    50: '#7d7ace',
    500: '#3347b7',
    950: '#000000',
  },
}

SCSS

$custom: #3347b7;
$custom-light: #7d7ace;
$custom-dark: #000000;

JSON

{
  "hex": "#3347b7",
  "rgb": {
    "r": 51,
    "g": 71,
    "b": 183
  },
  "hsl": {
    "h": 230.909,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.45399,
    "c": 0.17753,
    "h": 270
  },
  "luminance": 0.08629
}

Semantic roles & 50–950 ramp

primary

#3347B7

secondary

#C7BC7F

accent

#C948E0

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3347B7

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

Preview Lab → · Contrast checker → · Palette generator →