#3347B2#3347B2

#3347B2 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 45.0% C 0.171 H 270.0°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#3347B2
RGB	rgb(51, 71, 178)
HSL	hsl(231, 55%, 45%)
HSV	hsv(231, 71%, 70%)
CMYK	cmyk(71.3%, 60.1%, 0%, 30.2%)
CIE-LAB	lab(34.85, 29.20, -59.20)
CIE-LCH	lch(34.85, 66.01, 296.25°)
OKLab	oklab(44.97% -0.0001 -0.1708)
OKLCH	oklch(44.97% 0.171 270)
XYZ	xyz(11.6516, 8.4235, 43.1227)
Luminance	0.0843 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3347B2 #B29E33

analogous

#3387B2 #3347B2 #5E33B2

triadic

#3347B2 #B23347 #47B233

tetradic

#3347B2 #B23387 #B29E33 #33B25E

square

#3347B2 #B23387 #B29E33 #33B25E

split-complementary

#3347B2 #B25E33 #87B233

monochromatic

#182153 #253482 #3347B2 #5467CE #8492DC

Accessibility & contrast

On white

7.82

#3347B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#3347B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3347B2

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3347B2	#FFFFFF	#000000	##FFFFFF
##3347B2	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B6

Deuteranopia (green-blind)

#004CB0

Tritanopia (blue-blind)

#006275

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3347b2;
/* rgb */ color: rgb(51, 71, 178);
/* oklch */ color: oklch(45.0% 0.171 270.0);

Tailwind

colors: {
  custom: {
    50: '#7c7aca',
    500: '#3347b2',
    950: '#000000',
  },
}

SCSS

$custom: #3347b2;
$custom-light: #7c7aca;
$custom-dark: #000000;

JSON

{
  "hex": "#3347b2",
  "rgb": {
    "r": 51,
    "g": 71,
    "b": 178
  },
  "hsl": {
    "h": 230.551,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.44969,
    "c": 0.1708,
    "h": 270
  },
  "luminance": 0.08425
}

Semantic roles & 50–950 ramp

primary

#3347B2

secondary

#C5BA7C

accent

#C749DF

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3347B2

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

Preview Lab → · Contrast checker → · Palette generator →