#333CB8#333CB8

#333CB8 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.5% C 0.192 H 272.2°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#333CB8
RGB	rgb(51, 60, 184)
HSL	hsl(236, 57%, 46%)
HSV	hsv(236, 72%, 72%)
CMYK	cmyk(72.3%, 67.4%, 0%, 27.8%)
CIE-LAB	lab(32.69, 38.36, -66.29)
CIE-LCH	lch(32.69, 76.59, 300.06°)
OKLab	oklab(43.54% 0.0073 -0.1916)
OKLCH	oklch(43.54% 0.192 272.2)
XYZ	xyz(11.6299, 7.3950, 46.1526)
Luminance	0.0740 (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

#333CB8 #B8AF33

analogous

#337EB8 #333CB8 #6C33B8

triadic

#333CB8 #B8333C #3CB833

tetradic

#333CB8 #B8337E #B8AF33 #33B86C

square

#333CB8 #B8337E #B8AF33 #33B86C

split-complementary

#333CB8 #B86C33 #7EB833

monochromatic

#181D58 #262C88 #333CB8 #5860D1 #888DDE

Accessibility & contrast

On white

8.47

#333CB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#333CB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333CB8

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333CB8	#FFFFFF	#000000	##FFFFFF
##333CB8	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BC

Deuteranopia (green-blind)

#0047B6

Tritanopia (blue-blind)

#005D75

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #333cb8;
/* rgb */ color: rgb(51, 60, 184);
/* oklch */ color: oklch(43.5% 0.192 272.2);

Tailwind

colors: {
  custom: {
    50: '#7e72ce',
    500: '#333cb8',
    950: '#000000',
  },
}

SCSS

$custom: #333cb8;
$custom-light: #7e72ce;
$custom-dark: #000000;

JSON

{
  "hex": "#333cb8",
  "rgb": {
    "r": 51,
    "g": 60,
    "b": 184
  },
  "hsl": {
    "h": 235.94,
    "s": 56.596,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43542,
    "c": 0.19179,
    "h": 272.2
  },
  "luminance": 0.07396
}

Semantic roles & 50–950 ramp

primary

#333CB8

secondary

#C8C37F

accent

#D648E0

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #333CB8

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

Preview Lab → · Contrast checker → · Palette generator →