#3347BF#3347BF

#3347BF is a mid, vivid blue. Relative luminance 0.090; OKLCH L 46.1% C 0.188 H 269.9°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#3347BF
RGB	rgb(51, 71, 191)
HSL	hsl(231, 58%, 47%)
HSV	hsv(231, 73%, 75%)
CMYK	cmyk(73.3%, 62.8%, 0%, 25.1%)
CIE-LAB	lab(35.93, 33.92, -65.10)
CIE-LCH	lch(35.93, 73.41, 297.52°)
OKLab	oklab(46.1% -0.0003 -0.1881)
OKLCH	oklch(46.1% 0.188 269.9)
XYZ	xyz(13.0192, 8.9705, 50.3255)
Luminance	0.0897 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3347BF #BFAB33

analogous

#338DBF #3347BF #6533BF

triadic

#3347BF #BF3347 #47BF33

tetradic

#3347BF #BF338D #BFAB33 #33BF65

square

#3347BF #BF338D #BFAB33 #33BF65

split-complementary

#3347BF #BF6533 #8DBF33

monochromatic

#19235E #26358F #3347BF #5C6DD3 #8C98E0

Accessibility & contrast

On white

7.52

#3347BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#3347BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3347BF

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3347BF	#FFFFFF	#000000	##FFFFFF
##3347BF	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC3

Deuteranopia (green-blind)

#004EBD

Tritanopia (blue-blind)

#00667C

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3347bf;
/* rgb */ color: rgb(51, 71, 191);
/* oklch */ color: oklch(46.1% 0.188 269.9);

Tailwind

colors: {
  custom: {
    50: '#7f7ad3',
    500: '#3347bf',
    950: '#000000',
  },
}

SCSS

$custom: #3347bf;
$custom-light: #7f7ad3;
$custom-dark: #000000;

JSON

{
  "hex": "#3347bf",
  "rgb": {
    "r": 51,
    "g": 71,
    "b": 191
  },
  "hsl": {
    "h": 231.429,
    "s": 57.851,
    "l": 47.451
  },
  "oklch": {
    "l": 0.46101,
    "c": 0.18812,
    "h": 269.9
  },
  "luminance": 0.08972
}

Semantic roles & 50–950 ramp

primary

#3347BF

secondary

#CBC083

accent

#CB47E1

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3347BF

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

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