#3333A1#3333A1

#3333A1 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.9% C 0.172 H 275.2°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#3333A1
RGB	rgb(51, 51, 161)
HSL	hsl(240, 52%, 42%)
HSV	hsv(240, 68%, 63%)
CMYK	cmyk(68.3%, 68.3%, 0%, 36.9%)
CIE-LAB	lab(28.50, 35.94, -59.40)
CIE-LCH	lch(28.50, 69.43, 301.17°)
OKLab	oklab(39.85% 0.0158 -0.1715)
OKLCH	oklch(39.85% 0.172 275.2)
XYZ	xyz(8.9800, 5.6439, 34.3274)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3333A1 #A1A133

analogous

#336AA1 #3333A1 #6A33A1

triadic

#3333A1 #A13333 #33A133

tetradic

#3333A1 #A1336A #A1A133 #33A16A

square

#3333A1 #A1336A #A1A133 #33A16A

split-complementary

#3333A1 #A16A33 #6AA133

monochromatic

#161644 #242473 #3333A1 #4B4BC6 #7A7AD5

Accessibility & contrast

On white

9.86

#3333A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#3333A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3333A1

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3333A1	#FFFFFF	#000000	##FFFFFF
##3333A1	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A4

Deuteranopia (green-blind)

#003E9F

Tritanopia (blue-blind)

#005065

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3333a1;
/* rgb */ color: rgb(51, 51, 161);
/* oklch */ color: oklch(39.9% 0.172 275.2);

Tailwind

colors: {
  custom: {
    50: '#7a6bbe',
    500: '#3333a1',
    950: '#000000',
  },
}

SCSS

$custom: #3333a1;
$custom-light: #7a6bbe;
$custom-dark: #000000;

JSON

{
  "hex": "#3333a1",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 161
  },
  "hsl": {
    "h": 240,
    "s": 51.887,
    "l": 41.569
  },
  "oklch": {
    "l": 0.39853,
    "c": 0.17225,
    "h": 275.2
  },
  "luminance": 0.05645
}

Semantic roles & 50–950 ramp

primary

#3333A1

secondary

#BDBD72

accent

#DB4CDB

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #3333A1

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

Preview Lab → · Contrast checker → · Palette generator →