#333FC1#333FC1

#333FC1 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.9% C 0.200 H 271.3°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#333FC1
RGB	rgb(51, 63, 193)
HSL	hsl(235, 58%, 48%)
HSV	hsv(235, 74%, 76%)
CMYK	cmyk(73.6%, 67.4%, 0%, 24.3%)
CIE-LAB	lab(34.21, 39.65, -69.10)
CIE-LCH	lch(34.21, 79.67, 299.85°)
OKLab	oklab(44.9% 0.0046 -0.1998)
OKLCH	oklch(44.9% 0.2 271.3)
XYZ	xyz(12.7651, 8.1077, 51.3339)
Luminance	0.0811 (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

#333FC1 #C1B533

analogous

#3386C1 #333FC1 #6E33C1

triadic

#333FC1 #C1333F #3FC133

tetradic

#333FC1 #C13386 #C1B533 #33C16E

square

#333FC1 #C13386 #C1B533 #33C16E

split-complementary

#333FC1 #C16E33 #86C133

monochromatic

#191F60 #262F91 #333FC1 #5D67D4 #8D94E1

Accessibility & contrast

On white

8.01

#333FC1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#333FC1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333FC1

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333FC1	#FFFFFF	#000000	##FFFFFF
##333FC1	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C5

Deuteranopia (green-blind)

#004ABF

Tritanopia (blue-blind)

#00627B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #333fc1;
/* rgb */ color: rgb(51, 63, 193);
/* oklch */ color: oklch(44.9% 0.200 271.3);

Tailwind

colors: {
  custom: {
    50: '#8074d5',
    500: '#333fc1',
    950: '#000000',
  },
}

SCSS

$custom: #333fc1;
$custom-light: #8074d5;
$custom-dark: #000000;

JSON

{
  "hex": "#333fc1",
  "rgb": {
    "r": 51,
    "g": 63,
    "b": 193
  },
  "hsl": {
    "h": 234.93,
    "s": 58.197,
    "l": 47.843
  },
  "oklch": {
    "l": 0.44896,
    "c": 0.1999,
    "h": 271.3
  },
  "luminance": 0.08109
}

Semantic roles & 50–950 ramp

primary

#333FC1

secondary

#CBC584

accent

#D446E1

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #333FC1

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

Preview Lab → · Contrast checker → · Palette generator →