#333391#333391

#333391 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.4% C 0.151 H 276.6°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#333391
RGB	rgb(51, 51, 145)
HSL	hsl(240, 48%, 38%)
HSV	hsv(240, 65%, 57%)
CMYK	cmyk(64.8%, 64.8%, 0%, 43.1%)
CIE-LAB	lab(27.06, 30.35, -51.97)
CIE-LCH	lch(27.06, 60.19, 300.28°)
OKLab	oklab(38.37% 0.0174 -0.1498)
OKLCH	oklch(38.37% 0.151 276.6)
XYZ	xyz(7.6582, 5.1152, 27.3663)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333391 #919133

analogous

#336291 #333391 #623391

triadic

#333391 #913333 #339133

tetradic

#333391 #913362 #919133 #339162

square

#333391 #913362 #919133 #339162

split-complementary

#333391 #916233 #629133

monochromatic

#131336 #232364 #333391 #4444BD #7171CD

Accessibility & contrast

On white

10.38

#333391 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#333391 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333391

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333391	#FFFFFF	#000000	##FFFFFF
##333391	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004494

Deuteranopia (green-blind)

#003C8F

Tritanopia (blue-blind)

#004B5D

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #333391;
/* rgb */ color: rgb(51, 51, 145);
/* oklch */ color: oklch(38.4% 0.151 276.6);

Tailwind

colors: {
  custom: {
    50: '#766bb2',
    500: '#333391',
    950: '#000000',
  },
}

SCSS

$custom: #333391;
$custom-light: #766bb2;
$custom-dark: #000000;

JSON

{
  "hex": "#333391",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 145
  },
  "hsl": {
    "h": 240,
    "s": 47.959,
    "l": 38.431
  },
  "oklch": {
    "l": 0.38367,
    "c": 0.15076,
    "h": 276.6
  },
  "luminance": 0.05116
}

Semantic roles & 50–950 ramp

primary

#333391

secondary

#B5B56B

accent

#D850D8

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #333391

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

Preview Lab → · Contrast checker → · Palette generator →