#3333AF#3333AF

#3333AF is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.2% C 0.190 H 274.2°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#3333AF
RGB	rgb(51, 51, 175)
HSL	hsl(240, 55%, 44%)
HSV	hsv(240, 71%, 69%)
CMYK	cmyk(70.9%, 70.9%, 0%, 31.4%)
CIE-LAB	lab(29.83, 40.73, -65.64)
CIE-LCH	lch(29.83, 77.25, 301.82°)
OKLab	oklab(41.22% 0.0139 -0.1898)
OKLCH	oklch(41.22% 0.19 274.2)
XYZ	xyz(10.2844, 6.1656, 41.1972)
Luminance	0.0617 (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

#3333AF #AFAF33

analogous

#3371AF #3333AF #7133AF

triadic

#3333AF #AF3333 #33AF33

tetradic

#3333AF #AF3371 #AFAF33 #33AF71

square

#3333AF #AF3371 #AFAF33 #33AF71

split-complementary

#3333AF #AF7133 #71AF33

monochromatic

#171750 #252580 #3333AF #5252CD #8282DB

Accessibility & contrast

On white

9.40

#3333AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#3333AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3333AF

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3333AF	#FFFFFF	#000000	##FFFFFF
##3333AF	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB3

Deuteranopia (green-blind)

#0040AD

Tritanopia (blue-blind)

#00556D

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3333af;
/* rgb */ color: rgb(51, 51, 175);
/* oklch */ color: oklch(41.2% 0.190 274.2);

Tailwind

colors: {
  custom: {
    50: '#7d6cc8',
    500: '#3333af',
    950: '#000000',
  },
}

SCSS

$custom: #3333af;
$custom-light: #7d6cc8;
$custom-dark: #000000;

JSON

{
  "hex": "#3333af",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 175
  },
  "hsl": {
    "h": 240,
    "s": 54.867,
    "l": 44.314
  },
  "oklch": {
    "l": 0.41216,
    "c": 0.19028,
    "h": 274.2
  },
  "luminance": 0.06167
}

Semantic roles & 50–950 ramp

primary

#3333AF

secondary

#C4C47A

accent

#DE4ADE

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3333AF

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

Preview Lab → · Contrast checker → · Palette generator →