#3347AB#3347AB

#3347AB is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.4% C 0.161 H 270.0°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#3347AB
RGB	rgb(51, 71, 171)
HSL	hsl(230, 54%, 44%)
HSV	hsv(230, 70%, 67%)
CMYK	cmyk(70.2%, 58.5%, 0%, 32.9%)
CIE-LAB	lab(34.29, 26.64, -55.95)
CIE-LCH	lch(34.29, 61.97, 295.46°)
OKLab	oklab(44.38% -0.0001 -0.1612)
OKLCH	oklch(44.38% 0.161 270)
XYZ	xyz(10.9667, 8.1495, 39.5152)
Luminance	0.0815 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3347AB #AB9733

analogous

#3383AB #3347AB #5B33AB

triadic

#3347AB #AB3347 #47AB33

tetradic

#3347AB #AB3383 #AB9733 #33AB5B

square

#3347AB #AB3383 #AB9733 #33AB5B

split-complementary

#3347AB #AB5B33 #83AB33

monochromatic

#17204D #25337C #3347AB #5065CB #7F8ED9

Accessibility & contrast

On white

7.98

#3347AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3347AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3347AB

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3347AB	#FFFFFF	#000000	##FFFFFF
##3347AB	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056AE

Deuteranopia (green-blind)

#004BA9

Tritanopia (blue-blind)

#006072

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3347ab;
/* rgb */ color: rgb(51, 71, 171);
/* oklch */ color: oklch(44.4% 0.161 270.0);

Tailwind

colors: {
  custom: {
    50: '#7a7ac5',
    500: '#3347ab',
    950: '#000000',
  },
}

SCSS

$custom: #3347ab;
$custom-light: #7a7ac5;
$custom-dark: #000000;

JSON

{
  "hex": "#3347ab",
  "rgb": {
    "r": 51,
    "g": 71,
    "b": 171
  },
  "hsl": {
    "h": 230,
    "s": 54.054,
    "l": 43.529
  },
  "oklch": {
    "l": 0.4438,
    "c": 0.16124,
    "h": 270
  },
  "luminance": 0.08151
}

Semantic roles & 50–950 ramp

primary

#3347AB

secondary

#C2B678

accent

#C54ADD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #3347AB

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

Preview Lab → · Contrast checker → · Palette generator →