#333EB4#333EB4

#333EB4 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.5% C 0.184 H 272.0°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#333EB4
RGB	rgb(51, 62, 180)
HSL	hsl(235, 56%, 45%)
HSV	hsv(235, 72%, 71%)
CMYK	cmyk(71.7%, 65.6%, 0%, 29.4%)
CIE-LAB	lab(32.80, 35.70, -63.75)
CIE-LCH	lch(32.80, 73.06, 299.25°)
OKLab	oklab(43.51% 0.0063 -0.1842)
OKLCH	oklch(43.51% 0.184 272)
XYZ	xyz(11.3233, 7.4432, 44.0111)
Luminance	0.0744 (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

#333EB4 #B4A933

analogous

#337EB4 #333EB4 #6933B4

triadic

#333EB4 #B4333E #3EB433

tetradic

#333EB4 #B4337E #B4A933 #33B469

square

#333EB4 #B4337E #B4A933 #33B469

split-complementary

#333EB4 #B46933 #7EB433

monochromatic

#181D55 #252E84 #333EB4 #5560CF #858CDC

Accessibility & contrast

On white

8.44

#333EB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#333EB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333EB4

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333EB4	#FFFFFF	#000000	##FFFFFF
##333EB4	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B8

Deuteranopia (green-blind)

#0047B2

Tritanopia (blue-blind)

#005D73

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #333eb4;
/* rgb */ color: rgb(51, 62, 180);
/* oklch */ color: oklch(43.5% 0.184 272.0);

Tailwind

colors: {
  custom: {
    50: '#7d73cb',
    500: '#333eb4',
    950: '#000000',
  },
}

SCSS

$custom: #333eb4;
$custom-light: #7d73cb;
$custom-dark: #000000;

JSON

{
  "hex": "#333eb4",
  "rgb": {
    "r": 51,
    "g": 62,
    "b": 180
  },
  "hsl": {
    "h": 234.884,
    "s": 55.844,
    "l": 45.294
  },
  "oklch": {
    "l": 0.43508,
    "c": 0.18431,
    "h": 272
  },
  "luminance": 0.07444
}

Semantic roles & 50–950 ramp

primary

#333EB4

secondary

#C6C07D

accent

#D249DF

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #333EB4

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

Preview Lab → · Contrast checker → · Palette generator →