#3339AF#3339AF

#3339AF is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.2% C 0.184 H 273.1°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#3339AF
RGB	rgb(51, 57, 175)
HSL	hsl(237, 55%, 44%)
HSV	hsv(237, 71%, 69%)
CMYK	cmyk(70.9%, 67.4%, 0%, 31.4%)
CIE-LAB	lab(31.17, 37.07, -63.43)
CIE-LCH	lch(31.17, 73.47, 300.30°)
OKLab	oklab(42.19% 0.0101 -0.1833)
OKLCH	oklch(42.19% 0.184 273.1)
XYZ	xyz(10.5636, 6.7242, 41.2903)
Luminance	0.0673 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3339AF #AFA933

analogous

#3377AF #3339AF #6B33AF

triadic

#3339AF #AF3339 #39AF33

tetradic

#3339AF #AF3377 #AFA933 #33AF6B

square

#3339AF #AF3377 #AFA933 #33AF6B

split-complementary

#3339AF #AF6B33 #77AF33

monochromatic

#171A50 #252A80 #3339AF #5258CD #8286DB

Accessibility & contrast

On white

8.96

#3339AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#3339AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3339AF

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3339AF	#FFFFFF	#000000	##FFFFFF
##3339AF	1.00	8.96	2.35	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB3

Deuteranopia (green-blind)

#0044AD

Tritanopia (blue-blind)

#00596F

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3339af;
/* rgb */ color: rgb(51, 57, 175);
/* oklch */ color: oklch(42.2% 0.184 273.1);

Tailwind

colors: {
  custom: {
    50: '#7c70c8',
    500: '#3339af',
    950: '#000000',
  },
}

SCSS

$custom: #3339af;
$custom-light: #7c70c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3339af",
  "rgb": {
    "r": 51,
    "g": 57,
    "b": 175
  },
  "hsl": {
    "h": 237.097,
    "s": 54.867,
    "l": 44.314
  },
  "oklch": {
    "l": 0.42187,
    "c": 0.18359,
    "h": 273.1
  },
  "luminance": 0.06725
}

Semantic roles & 50–950 ramp

primary

#3339AF

secondary

#C4C07A

accent

#D74ADE

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3339AF

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

Preview Lab → · Contrast checker → · Palette generator →