#3333A4#3333A4

#3333A4 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.1% C 0.176 H 275.0°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#3333A4
RGB	rgb(51, 51, 164)
HSL	hsl(240, 53%, 42%)
HSV	hsv(240, 69%, 64%)
CMYK	cmyk(68.9%, 68.9%, 0%, 35.7%)
CIE-LAB	lab(28.78, 36.97, -60.76)
CIE-LCH	lch(28.78, 71.12, 301.32°)
OKLab	oklab(40.14% 0.0154 -0.1755)
OKLCH	oklch(40.14% 0.176 275)
XYZ	xyz(9.2477, 5.7510, 35.7375)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3333A4 #A4A433

analogous

#336CA4 #3333A4 #6C33A4

triadic

#3333A4 #A43333 #33A433

tetradic

#3333A4 #A4336C #A4A433 #33A46C

square

#3333A4 #A4336C #A4A433 #33A46C

split-complementary

#3333A4 #A46C33 #6CA433

monochromatic

#161647 #242475 #3333A4 #4D4DC8 #7B7BD6

Accessibility & contrast

On white

9.77

#3333A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#3333A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3333A4

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3333A4	#FFFFFF	#000000	##FFFFFF
##3333A4	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A7

Deuteranopia (green-blind)

#003FA2

Tritanopia (blue-blind)

#005167

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3333a4;
/* rgb */ color: rgb(51, 51, 164);
/* oklch */ color: oklch(40.1% 0.176 275.0);

Tailwind

colors: {
  custom: {
    50: '#7a6bc0',
    500: '#3333a4',
    950: '#000000',
  },
}

SCSS

$custom: #3333a4;
$custom-light: #7a6bc0;
$custom-dark: #000000;

JSON

{
  "hex": "#3333a4",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 164
  },
  "hsl": {
    "h": 240,
    "s": 52.558,
    "l": 42.157
  },
  "oklch": {
    "l": 0.4014,
    "c": 0.17617,
    "h": 275
  },
  "luminance": 0.05752
}

Semantic roles & 50–950 ramp

primary

#3333A4

secondary

#BFBF74

accent

#DC4CDC

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3333A4

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

Preview Lab → · Contrast checker → · Palette generator →