#3347AA#3347AA

#3347AA is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.3% C 0.160 H 269.9°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#3347AA
RGB	rgb(51, 71, 170)
HSL	hsl(230, 54%, 43%)
HSV	hsv(230, 70%, 67%)
CMYK	cmyk(70%, 58.2%, 0%, 33.3%)
CIE-LAB	lab(34.21, 26.27, -55.48)
CIE-LCH	lch(34.21, 61.38, 295.34°)
OKLab	oklab(44.3% -0.0001 -0.1599)
OKLCH	oklch(44.3% 0.16 269.9)
XYZ	xyz(10.8717, 8.1115, 39.0151)
Luminance	0.0811 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3347AA #AA9633

analogous

#3382AA #3347AA #5A33AA

triadic

#3347AA #AA3347 #47AA33

tetradic

#3347AA #AA3382 #AA9633 #33AA5A

square

#3347AA #AA3382 #AA9633 #33AA5A

split-complementary

#3347AA #AA5A33 #82AA33

monochromatic

#17204C #25337B #3347AA #5064CA #7F8ED9

Accessibility & contrast

On white

8.01

#3347AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3347AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3347AA

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3347AA	#FFFFFF	#000000	##FFFFFF
##3347AA	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056AD

Deuteranopia (green-blind)

#004BA8

Tritanopia (blue-blind)

#005F71

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3347aa;
/* rgb */ color: rgb(51, 71, 170);
/* oklch */ color: oklch(44.3% 0.160 269.9);

Tailwind

colors: {
  custom: {
    50: '#7a7ac4',
    500: '#3347aa',
    950: '#000000',
  },
}

SCSS

$custom: #3347aa;
$custom-light: #7a7ac4;
$custom-dark: #000000;

JSON

{
  "hex": "#3347aa",
  "rgb": {
    "r": 51,
    "g": 71,
    "b": 170
  },
  "hsl": {
    "h": 229.916,
    "s": 53.846,
    "l": 43.333
  },
  "oklch": {
    "l": 0.44297,
    "c": 0.15986,
    "h": 269.9
  },
  "luminance": 0.08113
}

Semantic roles & 50–950 ramp

primary

#3347AA

secondary

#C2B577

accent

#C54BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #3347AA

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

Preview Lab → · Contrast checker → · Palette generator →