#333799#333799

#333799 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.8% C 0.157 H 274.9°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#333799
RGB	rgb(51, 55, 153)
HSL	hsl(238, 50%, 40%)
HSV	hsv(238, 67%, 60%)
CMYK	cmyk(66.7%, 64.1%, 0%, 40%)
CIE-LAB	lab(28.73, 30.59, -54.15)
CIE-LCH	lch(28.73, 62.19, 299.47°)
OKLab	oklab(39.81% 0.0134 -0.1561)
OKLCH	oklch(39.81% 0.157 274.9)
XYZ	xyz(8.4793, 5.7354, 30.7910)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333799 #999533

analogous

#336A99 #333799 #623399

triadic

#333799 #993337 #379933

tetradic

#333799 #99336A #999533 #339962

square

#333799 #99336A #999533 #339962

split-complementary

#333799 #996233 #6A9933

monochromatic

#14163D #24276B #333799 #474CC2 #7579D1

Accessibility & contrast

On white

9.78

#333799 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#333799 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333799

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333799	#FFFFFF	#000000	##FFFFFF
##333799	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489C

Deuteranopia (green-blind)

#003F97

Tritanopia (blue-blind)

#005062

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #333799;
/* rgb */ color: rgb(51, 55, 153);
/* oklch */ color: oklch(39.8% 0.157 274.9);

Tailwind

colors: {
  custom: {
    50: '#786eb8',
    500: '#333799',
    950: '#000000',
  },
}

SCSS

$custom: #333799;
$custom-light: #786eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#333799",
  "rgb": {
    "r": 51,
    "g": 55,
    "b": 153
  },
  "hsl": {
    "h": 237.647,
    "s": 50,
    "l": 40
  },
  "oklch": {
    "l": 0.39807,
    "c": 0.15668,
    "h": 274.9
  },
  "luminance": 0.05736
}

Semantic roles & 50–950 ramp

primary

#333799

secondary

#B9B66E

accent

#D44EDA

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #333799

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

Preview Lab → · Contrast checker → · Palette generator →