#333383#333383

#333383 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.1% C 0.131 H 277.9°. Best body text is #FFFFFF at 10.81:1 contrast (WCAG AA passes).

Color values

HEX	#333383
RGB	rgb(51, 51, 131)
HSL	hsl(240, 44%, 36%)
HSV	hsv(240, 61%, 51%)
CMYK	cmyk(61.1%, 61.1%, 0%, 48.6%)
CIE-LAB	lab(25.89, 25.41, -45.18)
CIE-LCH	lch(25.89, 51.84, 299.35°)
OKLab	oklab(37.14% 0.018 -0.1298)
OKLCH	oklch(37.14% 0.131 277.9)
XYZ	xyz(6.6445, 4.7097, 22.0272)
Luminance	0.0471 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333383 #838333

analogous

#335B83 #333383 #5B3383

triadic

#333383 #833333 #338333

tetradic

#333383 #83335B #838333 #33835B

square

#333383 #83335B #838333 #33835B

split-complementary

#333383 #835B33 #5B8333

monochromatic

#11112B #222257 #333383 #4444AF #6B6BC5

Accessibility & contrast

On white

10.81

#333383 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#333383 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333383

10.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333383	#FFFFFF	#000000	##FFFFFF
##333383	1.00	10.81	1.94	10.81
#FFFFFF	10.81	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004186

Deuteranopia (green-blind)

#003A81

Tritanopia (blue-blind)

#004656

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #333383;
/* rgb */ color: rgb(51, 51, 131);
/* oklch */ color: oklch(37.1% 0.131 277.9);

Tailwind

colors: {
  custom: {
    50: '#736aa8',
    500: '#333383',
    950: '#000000',
  },
}

SCSS

$custom: #333383;
$custom-light: #736aa8;
$custom-dark: #000000;

JSON

{
  "hex": "#333383",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 131
  },
  "hsl": {
    "h": 240,
    "s": 43.956,
    "l": 35.686
  },
  "oklch": {
    "l": 0.37142,
    "c": 0.13105,
    "h": 277.9
  },
  "luminance": 0.0471
}

Semantic roles & 50–950 ramp

primary

#333383

secondary

#ADAD65

accent

#D454D4

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #333383

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

Preview Lab → · Contrast checker → · Palette generator →