#3B33CC#3B33CC

#3B33CC is a dark, highly saturated blue. Relative luminance 0.077; OKLCH L 44.7% C 0.224 H 274.7°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#3B33CC
RGB	rgb(59, 51, 204)
HSL	hsl(243, 60%, 50%)
HSV	hsv(243, 75%, 80%)
CMYK	cmyk(71.1%, 75%, 0%, 20%)
CIE-LAB	lab(33.26, 51.01, -77.07)
CIE-LCH	lch(33.26, 92.43, 303.50°)
OKLab	oklab(44.66% 0.0185 -0.2229)
OKLCH	oklch(44.66% 0.224 274.7)
XYZ	xyz(13.8829, 7.6557, 57.8611)
Luminance	0.0766 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.28

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B33CC #C4CC33

analogous

#3378CC #3B33CC #8733CC

triadic

#3B33CC #CC3B33 #33CC3B

tetradic

#3B33CC #CC3378 #C4CC33 #33CC87

square

#3B33CC #CC3378 #C4CC33 #33CC87

split-complementary

#3B33CC #CC8733 #78CC33

monochromatic

#1F1B6A #2D279B #3B33CC #6A64D8 #9995E4

Accessibility & contrast

On white

8.30

#3B33CC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3B33CC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B33CC

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B33CC	#FFFFFF	#000000	##FFFFFF
##3B33CC	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055D0

Deuteranopia (green-blind)

#0047C9

Tritanopia (blue-blind)

#00607D

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3b33cc;
/* rgb */ color: rgb(59, 51, 204);
/* oklch */ color: oklch(44.7% 0.224 274.7);

Tailwind

colors: {
  custom: {
    50: '#866ddd',
    500: '#3b33cc',
    950: '#000000',
  },
}

SCSS

$custom: #3b33cc;
$custom-light: #866ddd;
$custom-dark: #000000;

JSON

{
  "hex": "#3b33cc",
  "rgb": {
    "r": 59,
    "g": 51,
    "b": 204
  },
  "hsl": {
    "h": 243.137,
    "s": 60,
    "l": 50
  },
  "oklch": {
    "l": 0.44663,
    "c": 0.22365,
    "h": 274.7
  },
  "luminance": 0.07657
}

Semantic roles & 50–950 ramp

primary

#3B33CC

secondary

#CCD08B

accent

#E345DB

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3B33CC

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

Preview Lab → · Contrast checker → · Palette generator →