#333683#333683

#333683 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.7% C 0.127 H 276.8°. Best body text is #FFFFFF at 10.52:1 contrast (WCAG AA passes).

Color values

HEX	#333683
RGB	rgb(51, 54, 131)
HSL	hsl(238, 44%, 36%)
HSV	hsv(238, 61%, 51%)
CMYK	cmyk(61.1%, 58.8%, 0%, 48.6%)
CIE-LAB	lab(26.68, 23.40, -43.90)
CIE-LCH	lch(26.68, 49.75, 298.06°)
OKLab	oklab(37.72% 0.0149 -0.126)
OKLCH	oklch(37.72% 0.127 276.8)
XYZ	xyz(6.7798, 4.9803, 22.0724)
Luminance	0.0498 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333683 #838033

analogous

#335E83 #333683 #583383

triadic

#333683 #833336 #368333

tetradic

#333683 #83335E #838033 #338358

square

#333683 #83335E #838033 #338358

split-complementary

#333683 #835833 #5E8333

monochromatic

#11122B #222457 #333683 #4448AF #6B6EC5

Accessibility & contrast

On white

10.52

#333683 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#333683 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333683

10.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333683	#FFFFFF	#000000	##FFFFFF
##333683	1.00	10.52	2.00	10.52
#FFFFFF	10.52	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004386

Deuteranopia (green-blind)

#003C81

Tritanopia (blue-blind)

#004857

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #333683;
/* rgb */ color: rgb(51, 54, 131);
/* oklch */ color: oklch(37.7% 0.127 276.8);

Tailwind

colors: {
  custom: {
    50: '#736da8',
    500: '#333683',
    950: '#000000',
  },
}

SCSS

$custom: #333683;
$custom-light: #736da8;
$custom-dark: #000000;

JSON

{
  "hex": "#333683",
  "rgb": {
    "r": 51,
    "g": 54,
    "b": 131
  },
  "hsl": {
    "h": 237.75,
    "s": 43.956,
    "l": 35.686
  },
  "oklch": {
    "l": 0.37725,
    "c": 0.1269,
    "h": 276.8
  },
  "luminance": 0.04981
}

Semantic roles & 50–950 ramp

primary

#333683

secondary

#ADAB65

accent

#CF54D4

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #333683

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

Preview Lab → · Contrast checker → · Palette generator →