#333699#333699

#333699 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.6% C 0.158 H 275.2°. Best body text is #FFFFFF at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#333699
RGB	rgb(51, 54, 153)
HSL	hsl(238, 50%, 40%)
HSV	hsv(238, 67%, 60%)
CMYK	cmyk(66.7%, 64.7%, 0%, 40%)
CIE-LAB	lab(28.49, 31.24, -54.55)
CIE-LCH	lch(28.49, 62.86, 299.80°)
OKLab	oklab(39.63% 0.0142 -0.1573)
OKLCH	oklch(39.63% 0.158 275.2)
XYZ	xyz(8.4323, 5.6413, 30.7753)
Luminance	0.0564 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333699 #999633

analogous

#336999 #333699 #633399

triadic

#333699 #993336 #369933

tetradic

#333699 #993369 #999633 #339963

square

#333699 #993369 #999633 #339963

split-complementary

#333699 #996333 #699933

monochromatic

#14163D #24266B #333699 #474BC2 #7578D1

Accessibility & contrast

On white

9.87

#333699 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#333699 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333699

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333699	#FFFFFF	#000000	##FFFFFF
##333699	1.00	9.87	2.13	9.87
#FFFFFF	9.87	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489C

Deuteranopia (green-blind)

#003F97

Tritanopia (blue-blind)

#004F62

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #333699;
/* rgb */ color: rgb(51, 54, 153);
/* oklch */ color: oklch(39.6% 0.158 275.2);

Tailwind

colors: {
  custom: {
    50: '#786db8',
    500: '#333699',
    950: '#000000',
  },
}

SCSS

$custom: #333699;
$custom-light: #786db8;
$custom-dark: #000000;

JSON

{
  "hex": "#333699",
  "rgb": {
    "r": 51,
    "g": 54,
    "b": 153
  },
  "hsl": {
    "h": 238.235,
    "s": 50,
    "l": 40
  },
  "oklch": {
    "l": 0.39627,
    "c": 0.15793,
    "h": 275.2
  },
  "luminance": 0.05642
}

Semantic roles & 50–950 ramp

primary

#333699

secondary

#B9B76E

accent

#D54EDA

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #333699

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

Preview Lab → · Contrast checker → · Palette generator →