#3B33BB#3B33BB

#3B33BB is a dark, highly saturated blue. Relative luminance 0.069; OKLCH L 42.9% C 0.203 H 276.2°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#3B33BB
RGB	rgb(59, 51, 187)
HSL	hsl(244, 57%, 47%)
HSV	hsv(244, 73%, 73%)
CMYK	cmyk(68.4%, 72.7%, 0%, 26.7%)
CIE-LAB	lab(31.54, 45.59, -69.93)
CIE-LCH	lch(31.54, 83.48, 303.10°)
OKLab	oklab(42.94% 0.0218 -0.2021)
OKLCH	oklch(42.94% 0.203 276.2)
XYZ	xyz(11.9542, 6.8842, 47.7029)
Luminance	0.0688 (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

#3B33BB #B3BB33

analogous

#336FBB #3B33BB #7F33BB

triadic

#3B33BB #BB3B33 #33BB3B

tetradic

#3B33BB #BB336F #B3BB33 #33BB7F

square

#3B33BB #BB336F #B3BB33 #33BB7F

split-complementary

#3B33BB #BB7F33 #6FBB33

monochromatic

#1D195B #2C268B #3B33BB #6059D2 #8E89DF

Accessibility & contrast

On white

8.83

#3B33BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#3B33BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B33BB

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B33BB	#FFFFFF	#000000	##FFFFFF
##3B33BB	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050BF

Deuteranopia (green-blind)

#0044B9

Tritanopia (blue-blind)

#005974

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3b33bb;
/* rgb */ color: rgb(59, 51, 187);
/* oklch */ color: oklch(42.9% 0.203 276.2);

Tailwind

colors: {
  custom: {
    50: '#836cd1',
    500: '#3b33bb',
    950: '#000000',
  },
}

SCSS

$custom: #3b33bb;
$custom-light: #836cd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3b33bb",
  "rgb": {
    "r": 59,
    "g": 51,
    "b": 187
  },
  "hsl": {
    "h": 243.529,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.42937,
    "c": 0.20325,
    "h": 276.2
  },
  "luminance": 0.06885
}

Semantic roles & 50–950 ramp

primary

#3B33BB

secondary

#C5C981

accent

#E047D7

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3B33BB

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

Preview Lab → · Contrast checker → · Palette generator →