#333ACC#333ACC

#333ACC is a mid, highly saturated blue. Relative luminance 0.081; OKLCH L 45.2% C 0.219 H 271.5°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#333ACC
RGB	rgb(51, 58, 204)
HSL	hsl(237, 60%, 50%)
HSV	hsv(237, 75%, 80%)
CMYK	cmyk(75%, 71.6%, 0%, 20%)
CIE-LAB	lab(34.17, 46.40, -75.59)
CIE-LCH	lch(34.17, 88.69, 301.54°)
OKLab	oklab(45.18% 0.0059 -0.2188)
OKLCH	oklch(45.18% 0.219 271.5)
XYZ	xyz(13.7737, 8.0881, 57.9503)
Luminance	0.0809 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.00

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333ACC #CCC533

analogous

#3386CC #333ACC #7933CC

triadic

#333ACC #CC333A #3ACC33

tetradic

#333ACC #CC3386 #CCC533 #33CC79

square

#333ACC #CC3386 #CCC533 #33CC79

split-complementary

#333ACC #CC7933 #86CC33

monochromatic

#1B1E6A #272C9B #333ACC #6469D8 #9599E4

Accessibility & contrast

On white

8.02

#333ACC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#333ACC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333ACC

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333ACC	#FFFFFF	#000000	##FFFFFF
##333ACC	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058D0

Deuteranopia (green-blind)

#0049C9

Tritanopia (blue-blind)

#00637F

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #333acc;
/* rgb */ color: rgb(51, 58, 204);
/* oklch */ color: oklch(45.2% 0.219 271.5);

Tailwind

colors: {
  custom: {
    50: '#8371dd',
    500: '#333acc',
    950: '#000000',
  },
}

SCSS

$custom: #333acc;
$custom-light: #8371dd;
$custom-dark: #000000;

JSON

{
  "hex": "#333acc",
  "rgb": {
    "r": 51,
    "g": 58,
    "b": 204
  },
  "hsl": {
    "h": 237.255,
    "s": 60,
    "l": 50
  },
  "oklch": {
    "l": 0.45184,
    "c": 0.21887,
    "h": 271.5
  },
  "luminance": 0.0809
}

Semantic roles & 50–950 ramp

primary

#333ACC

secondary

#D0CD8B

accent

#DC45E3

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #333ACC

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

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