#3333AC#3333AC

#3333AC is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.9% C 0.186 H 274.4°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#3333AC
RGB	rgb(51, 51, 172)
HSL	hsl(240, 54%, 44%)
HSV	hsv(240, 70%, 67%)
CMYK	cmyk(70.3%, 70.3%, 0%, 32.5%)
CIE-LAB	lab(29.54, 39.71, -64.33)
CIE-LCH	lch(29.54, 75.60, 301.69°)
OKLab	oklab(40.92% 0.0143 -0.1859)
OKLCH	oklch(40.92% 0.186 274.4)
XYZ	xyz(9.9930, 6.0491, 39.6627)
Luminance	0.0605 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.95

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3333AC #ACAC33

analogous

#336FAC #3333AC #6F33AC

triadic

#3333AC #AC3333 #33AC33

tetradic

#3333AC #AC336F #ACAC33 #33AC6F

square

#3333AC #AC336F #ACAC33 #33AC6F

split-complementary

#3333AC #AC6F33 #6FAC33

monochromatic

#17174E #25257D #3333AC #5151CB #8080D9

Accessibility & contrast

On white

9.50

#3333AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#3333AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3333AC

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3333AC	#FFFFFF	#000000	##FFFFFF
##3333AC	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB0

Deuteranopia (green-blind)

#0040AA

Tritanopia (blue-blind)

#00546B

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3333ac;
/* rgb */ color: rgb(51, 51, 172);
/* oklch */ color: oklch(40.9% 0.186 274.4);

Tailwind

colors: {
  custom: {
    50: '#7c6cc6',
    500: '#3333ac',
    950: '#000000',
  },
}

SCSS

$custom: #3333ac;
$custom-light: #7c6cc6;
$custom-dark: #000000;

JSON

{
  "hex": "#3333ac",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 172
  },
  "hsl": {
    "h": 240,
    "s": 54.26,
    "l": 43.725
  },
  "oklch": {
    "l": 0.4092,
    "c": 0.18647,
    "h": 274.4
  },
  "luminance": 0.0605
}

Semantic roles & 50–950 ramp

primary

#3333AC

secondary

#C2C278

accent

#DE4ADE

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3333AC

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

Preview Lab → · Contrast checker → · Palette generator →