#3347B5#3347B5

#3347B5 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.2% C 0.175 H 270.0°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#3347B5
RGB	rgb(51, 71, 181)
HSL	hsl(231, 56%, 45%)
HSV	hsv(231, 72%, 71%)
CMYK	cmyk(71.8%, 60.8%, 0%, 29%)
CIE-LAB	lab(35.09, 30.30, -60.58)
CIE-LCH	lch(35.09, 67.73, 296.57°)
OKLab	oklab(45.23% -0.0001 -0.1748)
OKLCH	oklch(45.23% 0.175 270)
XYZ	xyz(11.9561, 8.5453, 44.7264)
Luminance	0.0855 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3347B5 #B5A133

analogous

#3388B5 #3347B5 #6033B5

triadic

#3347B5 #B53347 #47B533

tetradic

#3347B5 #B53388 #B5A133 #33B560

square

#3347B5 #B53388 #B5A133 #33B560

split-complementary

#3347B5 #B56033 #88B533

monochromatic

#182256 #263485 #3347B5 #5669CF #8693DD

Accessibility & contrast

On white

7.75

#3347B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#3347B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3347B5

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3347B5	#FFFFFF	#000000	##FFFFFF
##3347B5	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B9

Deuteranopia (green-blind)

#004DB3

Tritanopia (blue-blind)

#006377

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3347b5;
/* rgb */ color: rgb(51, 71, 181);
/* oklch */ color: oklch(45.2% 0.175 270.0);

Tailwind

colors: {
  custom: {
    50: '#7c7acc',
    500: '#3347b5',
    950: '#000000',
  },
}

SCSS

$custom: #3347b5;
$custom-light: #7c7acc;
$custom-dark: #000000;

JSON

{
  "hex": "#3347b5",
  "rgb": {
    "r": 51,
    "g": 71,
    "b": 181
  },
  "hsl": {
    "h": 230.769,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.45226,
    "c": 0.17485,
    "h": 270
  },
  "luminance": 0.08546
}

Semantic roles & 50–950 ramp

primary

#3347B5

secondary

#C6BB7D

accent

#C848DF

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3347B5

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

Preview Lab → · Contrast checker → · Palette generator →