#3333AD#3333AD

#3333AD is a dark, vivid blue. Relative luminance 0.061; OKLCH L 41.0% C 0.188 H 274.3°. Best body text is #FFFFFF at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#3333AD
RGB	rgb(51, 51, 173)
HSL	hsl(240, 54%, 44%)
HSV	hsv(240, 71%, 68%)
CMYK	cmyk(70.5%, 70.5%, 0%, 32.2%)
CIE-LAB	lab(29.63, 40.05, -64.77)
CIE-LCH	lch(29.63, 76.15, 301.73°)
OKLab	oklab(41.02% 0.0142 -0.1872)
OKLCH	oklch(41.02% 0.188 274.3)
XYZ	xyz(10.0894, 6.0876, 40.1704)
Luminance	0.0609 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3333AD #ADAD33

analogous

#3370AD #3333AD #7033AD

triadic

#3333AD #AD3333 #33AD33

tetradic

#3333AD #AD3370 #ADAD33 #33AD70

square

#3333AD #AD3370 #ADAD33 #33AD70

split-complementary

#3333AD #AD7033 #70AD33

monochromatic

#17174E #25257E #3333AD #5151CC #8181DA

Accessibility & contrast

On white

9.47

#3333AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#3333AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3333AD

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3333AD	#FFFFFF	#000000	##FFFFFF
##3333AD	1.00	9.47	2.22	9.47
#FFFFFF	9.47	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB1

Deuteranopia (green-blind)

#0040AB

Tritanopia (blue-blind)

#00556C

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3333ad;
/* rgb */ color: rgb(51, 51, 173);
/* oklch */ color: oklch(41.0% 0.188 274.3);

Tailwind

colors: {
  custom: {
    50: '#7c6cc7',
    500: '#3333ad',
    950: '#000000',
  },
}

SCSS

$custom: #3333ad;
$custom-light: #7c6cc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3333ad",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 173
  },
  "hsl": {
    "h": 240,
    "s": 54.464,
    "l": 43.922
  },
  "oklch": {
    "l": 0.41018,
    "c": 0.18774,
    "h": 274.3
  },
  "luminance": 0.06089
}

Semantic roles & 50–950 ramp

primary

#3333AD

secondary

#C3C379

accent

#DE4ADE

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3333AD

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

Preview Lab → · Contrast checker → · Palette generator →