#3733DA#3733DA

#3733DA is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.9% C 0.241 H 272.6°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#3733DA
RGB	rgb(55, 51, 218)
HSL	hsl(241, 69%, 53%)
HSV	hsv(241, 77%, 85%)
CMYK	cmyk(74.8%, 76.6%, 0%, 14.5%)
CIE-LAB	lab(34.48, 55.06, -83.16)
CIE-LCH	lch(34.48, 99.74, 303.51°)
OKLab	oklab(45.89% 0.0108 -0.2407)
OKLCH	oklch(45.89% 0.241 272.6)
XYZ	xyz(15.4100, 8.2402, 67.0944)
Luminance	0.0824 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.49

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3733DA #D6DA33

analogous

#3383DA #3733DA #8A33DA

triadic

#3733DA #DA3733 #33DA37

tetradic

#3733DA #DA3383 #D6DA33 #33DA8A

square

#3733DA #DA3383 #D6DA33 #33DA8A

split-complementary

#3733DA #DA8A33 #83DA33

monochromatic

#19177C #2320B0 #3733DA #6A67E3 #9D9BED

Accessibility & contrast

On white

7.93

#3733DA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#3733DA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3733DA

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3733DA	#FFFFFF	#000000	##FFFFFF
##3733DA	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059DF

Deuteranopia (green-blind)

#0049D7

Tritanopia (blue-blind)

#006585

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3733da;
/* rgb */ color: rgb(55, 51, 218);
/* oklch */ color: oklch(45.9% 0.241 272.6);

Tailwind

colors: {
  custom: {
    50: '#886ee7',
    500: '#3733da',
    950: '#000000',
  },
}

SCSS

$custom: #3733da;
$custom-light: #886ee7;
$custom-dark: #000000;

JSON

{
  "hex": "#3733da",
  "rgb": {
    "r": 55,
    "g": 51,
    "b": 218
  },
  "hsl": {
    "h": 241.437,
    "s": 69.295,
    "l": 52.745
  },
  "oklch": {
    "l": 0.45893,
    "c": 0.24092,
    "h": 272.6
  },
  "luminance": 0.08242
}

Semantic roles & 50–950 ramp

primary

#3733DA

secondary

#D7D990

accent

#EC3CE8

background

#F9F6FE

surface

#F2ECFD

border

#CCC7D5

text

#0E0716

muted

#7E7A84

Preview Lab

Preview with #3733DA

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

Preview Lab → · Contrast checker → · Palette generator →