#3333CC#3333CC

#3333CC is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 44.2% C 0.226 H 272.3°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#3333CC
RGB	rgb(51, 51, 204)
HSL	hsl(240, 60%, 50%)
HSV	hsv(240, 75%, 80%)
CMYK	cmyk(75%, 75%, 0%, 20%)
CIE-LAB	lab(32.77, 50.32, -77.90)
CIE-LCH	lch(32.77, 92.74, 302.86°)
OKLab	oklab(44.19% 0.009 -0.2255)
OKLCH	oklch(44.19% 0.226 272.3)
XYZ	xyz(13.4445, 7.4297, 57.8405)
Luminance	0.0743 (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

#3333CC #CCCC33

analogous

#337FCC #3333CC #7F33CC

triadic

#3333CC #CC3333 #33CC33

tetradic

#3333CC #CC3380 #CCCC33 #33CC80

square

#3333CC #CC3380 #CCCC33 #33CC80

split-complementary

#3333CC #CC8033 #80CC33

monochromatic

#1B1B6A #27279B #3333CC #6464D8 #9595E4

Accessibility & contrast

On white

8.45

#3333CC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3333CC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3333CC

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3333CC	#FFFFFF	#000000	##FFFFFF
##3333CC	1.00	8.45	2.49	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054D0

Deuteranopia (green-blind)

#0045C9

Tritanopia (blue-blind)

#00607D

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3333cc;
/* rgb */ color: rgb(51, 51, 204);
/* oklch */ color: oklch(44.2% 0.226 272.3);

Tailwind

colors: {
  custom: {
    50: '#836ddd',
    500: '#3333cc',
    950: '#000000',
  },
}

SCSS

$custom: #3333cc;
$custom-light: #836ddd;
$custom-dark: #000000;

JSON

{
  "hex": "#3333cc",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 204
  },
  "hsl": {
    "h": 240,
    "s": 60,
    "l": 50
  },
  "oklch": {
    "l": 0.44188,
    "c": 0.22565,
    "h": 272.3
  },
  "luminance": 0.07431
}

Semantic roles & 50–950 ramp

primary

#3333CC

secondary

#D0D08B

accent

#E345E3

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3333CC

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

Preview Lab → · Contrast checker → · Palette generator →