#333BBC#333BBC

#333BBC is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.8% C 0.198 H 272.2°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#333BBC
RGB	rgb(51, 59, 188)
HSL	hsl(236, 57%, 47%)
HSV	hsv(236, 73%, 74%)
CMYK	cmyk(72.9%, 68.6%, 0%, 26.3%)
CIE-LAB	lab(32.84, 40.36, -68.41)
CIE-LCH	lch(32.84, 79.43, 300.54°)
OKLab	oklab(43.76% 0.0074 -0.1979)
OKLCH	oklch(43.76% 0.198 272.2)
XYZ	xyz(12.0032, 7.4614, 48.3748)
Luminance	0.0746 (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

#333BBC #BCB433

analogous

#3380BC #333BBC #6F33BC

triadic

#333BBC #BC333B #3BBC33

tetradic

#333BBC #BC3380 #BCB433 #33BC6F

square

#333BBC #BC3380 #BCB433 #33BC6F

split-complementary

#333BBC #BC6F33 #80BC33

monochromatic

#191D5C #262C8C #333BBC #5A61D2 #8A8FDF

Accessibility & contrast

On white

8.42

#333BBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#333BBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333BBC

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333BBC	#FFFFFF	#000000	##FFFFFF
##333BBC	1.00	8.42	2.49	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C0

Deuteranopia (green-blind)

#0047BA

Tritanopia (blue-blind)

#005E77

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #333bbc;
/* rgb */ color: rgb(51, 59, 188);
/* oklch */ color: oklch(43.8% 0.198 272.2);

Tailwind

colors: {
  custom: {
    50: '#7f71d1',
    500: '#333bbc',
    950: '#000000',
  },
}

SCSS

$custom: #333bbc;
$custom-light: #7f71d1;
$custom-dark: #000000;

JSON

{
  "hex": "#333bbc",
  "rgb": {
    "r": 51,
    "g": 59,
    "b": 188
  },
  "hsl": {
    "h": 236.496,
    "s": 57.322,
    "l": 46.863
  },
  "oklch": {
    "l": 0.4376,
    "c": 0.198,
    "h": 272.2
  },
  "luminance": 0.07463
}

Semantic roles & 50–950 ramp

primary

#333BBC

secondary

#C9C581

accent

#D847E1

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #333BBC

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

Preview Lab → · Contrast checker → · Palette generator →