#3333CA#3333CA

#3333CA is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 44.0% C 0.223 H 272.4°. Best body text is #FFFFFF at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#3333CA
RGB	rgb(51, 51, 202)
HSL	hsl(240, 60%, 50%)
HSV	hsv(240, 75%, 79%)
CMYK	cmyk(74.8%, 74.8%, 0%, 20.8%)
CIE-LAB	lab(32.56, 49.68, -77.08)
CIE-LCH	lch(32.56, 91.70, 302.80°)
OKLab	oklab(43.98% 0.0093 -0.2231)
OKLCH	oklch(43.98% 0.223 272.4)
XYZ	xyz(13.2062, 7.3343, 56.5853)
Luminance	0.0734 (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

#3333CA #CACA33

analogous

#337FCA #3333CA #7F33CA

triadic

#3333CA #CA3333 #33CA33

tetradic

#3333CA #CA337F #CACA33 #33CA7F

square

#3333CA #CA337F #CACA33 #33CA7F

split-complementary

#3333CA #CA7F33 #7FCA33

monochromatic

#1A1A68 #272799 #3333CA #6363D8 #9494E4

Accessibility & contrast

On white

8.51

#3333CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#3333CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3333CA

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3333CA	#FFFFFF	#000000	##FFFFFF
##3333CA	1.00	8.51	2.47	8.51
#FFFFFF	8.51	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054CE

Deuteranopia (green-blind)

#0045C7

Tritanopia (blue-blind)

#005F7C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3333ca;
/* rgb */ color: rgb(51, 51, 202);
/* oklch */ color: oklch(44.0% 0.223 272.4);

Tailwind

colors: {
  custom: {
    50: '#836ddc',
    500: '#3333ca',
    950: '#000000',
  },
}

SCSS

$custom: #3333ca;
$custom-light: #836ddc;
$custom-dark: #000000;

JSON

{
  "hex": "#3333ca",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 202
  },
  "hsl": {
    "h": 240,
    "s": 59.684,
    "l": 49.608
  },
  "oklch": {
    "l": 0.43977,
    "c": 0.22329,
    "h": 272.4
  },
  "luminance": 0.07336
}

Semantic roles & 50–950 ramp

primary

#3333CA

secondary

#CFCF8A

accent

#E345E3

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0D0715

muted

#7D7A83

Preview Lab

Preview with #3333CA

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

Preview Lab → · Contrast checker → · Palette generator →