#3333C0#3333C0

#3333C0 is a dark, highly saturated blue. Relative luminance 0.069; OKLCH L 42.9% C 0.211 H 273.0°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#3333C0
RGB	rgb(51, 51, 192)
HSL	hsl(240, 58%, 48%)
HSV	hsv(240, 73%, 75%)
CMYK	cmyk(73.4%, 73.4%, 0%, 24.7%)
CIE-LAB	lab(31.52, 46.41, -72.93)
CIE-LCH	lch(31.52, 86.44, 302.47°)
OKLab	oklab(42.94% 0.0111 -0.211)
OKLCH	oklch(42.94% 0.211 273)
XYZ	xyz(12.0603, 6.8760, 50.5506)
Luminance	0.0688 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 4.08

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3333C0 #C0C033

analogous

#3379C0 #3333C0 #7933C0

triadic

#3333C0 #C03333 #33C033

tetradic

#3333C0 #C03379 #C0C033 #33C079

square

#3333C0 #C03379 #C0C033 #33C079

split-complementary

#3333C0 #C07933 #79C033

monochromatic

#19195F #262690 #3333C0 #5C5CD4 #8D8DE1

Accessibility & contrast

On white

8.84

#3333C0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#3333C0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3333C0

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3333C0	#FFFFFF	#000000	##FFFFFF
##3333C0	1.00	8.84	2.38	8.84
#FFFFFF	8.84	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051C4

Deuteranopia (green-blind)

#0043BD

Tritanopia (blue-blind)

#005C77

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3333c0;
/* rgb */ color: rgb(51, 51, 192);
/* oklch */ color: oklch(42.9% 0.211 273.0);

Tailwind

colors: {
  custom: {
    50: '#816cd4',
    500: '#3333c0',
    950: '#000000',
  },
}

SCSS

$custom: #3333c0;
$custom-light: #816cd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3333c0",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 192
  },
  "hsl": {
    "h": 240,
    "s": 58.025,
    "l": 47.647
  },
  "oklch": {
    "l": 0.42937,
    "c": 0.2113,
    "h": 273
  },
  "luminance": 0.06877
}

Semantic roles & 50–950 ramp

primary

#3333C0

secondary

#CBCB84

accent

#E147E1

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3333C0

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

Preview Lab → · Contrast checker → · Palette generator →