#3333C1#3333C1

#3333C1 is a dark, highly saturated blue. Relative luminance 0.069; OKLCH L 43.0% C 0.213 H 273.0°. Best body text is #FFFFFF at 8.81:1 contrast (WCAG AA passes).

Color values

HEX	#3333C1
RGB	rgb(51, 51, 193)
HSL	hsl(240, 58%, 48%)
HSV	hsv(240, 74%, 76%)
CMYK	cmyk(73.6%, 73.6%, 0%, 24.3%)
CIE-LAB	lab(31.63, 46.74, -73.35)
CIE-LCH	lch(31.63, 86.97, 302.51°)
OKLab	oklab(43.04% 0.0109 -0.2122)
OKLCH	oklch(43.04% 0.213 273)
XYZ	xyz(12.1715, 6.9205, 51.1361)
Luminance	0.0692 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 4.18

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3333C1 #C1C133

analogous

#337AC1 #3333C1 #7A33C1

triadic

#3333C1 #C13333 #33C133

tetradic

#3333C1 #C1337A #C1C133 #33C17A

square

#3333C1 #C1337A #C1C133 #33C17A

split-complementary

#3333C1 #C17A33 #7AC133

monochromatic

#191960 #262691 #3333C1 #5D5DD4 #8D8DE1

Accessibility & contrast

On white

8.81

#3333C1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#3333C1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3333C1

8.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3333C1	#FFFFFF	#000000	##FFFFFF
##3333C1	1.00	8.81	2.38	8.81
#FFFFFF	8.81	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051C5

Deuteranopia (green-blind)

#0043BE

Tritanopia (blue-blind)

#005C77

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3333c1;
/* rgb */ color: rgb(51, 51, 193);
/* oklch */ color: oklch(43.0% 0.213 273.0);

Tailwind

colors: {
  custom: {
    50: '#816cd5',
    500: '#3333c1',
    950: '#000000',
  },
}

SCSS

$custom: #3333c1;
$custom-light: #816cd5;
$custom-dark: #000000;

JSON

{
  "hex": "#3333c1",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 193
  },
  "hsl": {
    "h": 240,
    "s": 58.197,
    "l": 47.843
  },
  "oklch": {
    "l": 0.4304,
    "c": 0.21251,
    "h": 273
  },
  "luminance": 0.06922
}

Semantic roles & 50–950 ramp

primary

#3333C1

secondary

#CBCB84

accent

#E146E1

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3333C1

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

Preview Lab → · Contrast checker → · Palette generator →