#333388#333388

#333388 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.6% C 0.138 H 277.4°. Best body text is #FFFFFF at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#333388
RGB	rgb(51, 51, 136)
HSL	hsl(240, 45%, 37%)
HSV	hsv(240, 63%, 53%)
CMYK	cmyk(62.5%, 62.5%, 0%, 46.7%)
CIE-LAB	lab(26.30, 27.18, -47.64)
CIE-LCH	lch(26.30, 54.85, 299.70°)
OKLab	oklab(37.57% 0.0179 -0.137)
OKLCH	oklch(37.57% 0.138 277.4)
XYZ	xyz(6.9916, 4.8485, 23.8552)
Luminance	0.0485 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333388 #888833

analogous

#335E88 #333388 #5E3388

triadic

#333388 #883333 #338833

tetradic

#333388 #88335E #888833 #33885E

square

#333388 #88335E #888833 #33885E

split-complementary

#333388 #885E33 #5E8833

monochromatic

#12122F #22225B #333388 #4444B5 #6D6DC8

Accessibility & contrast

On white

10.66

#333388 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#333388 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333388

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333388	#FFFFFF	#000000	##FFFFFF
##333388	1.00	10.66	1.97	10.66
#FFFFFF	10.66	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428B

Deuteranopia (green-blind)

#003B86

Tritanopia (blue-blind)

#004858

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #333388;
/* rgb */ color: rgb(51, 51, 136);
/* oklch */ color: oklch(37.6% 0.138 277.4);

Tailwind

colors: {
  custom: {
    50: '#746bab',
    500: '#333388',
    950: '#000000',
  },
}

SCSS

$custom: #333388;
$custom-light: #746bab;
$custom-dark: #000000;

JSON

{
  "hex": "#333388",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 136
  },
  "hsl": {
    "h": 240,
    "s": 45.455,
    "l": 36.667
  },
  "oklch": {
    "l": 0.3757,
    "c": 0.13819,
    "h": 277.4
  },
  "luminance": 0.04849
}

Semantic roles & 50–950 ramp

primary

#333388

secondary

#B0B067

accent

#D553D5

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #333388

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

Preview Lab → · Contrast checker → · Palette generator →