#3733D4#3733D4

#3733D4 is a mid, highly saturated blue. Relative luminance 0.079; OKLCH L 45.3% C 0.234 H 272.9°. Best body text is #FFFFFF at 8.12:1 contrast (WCAG AA passes).

Color values

HEX	#3733D4
RGB	rgb(55, 51, 212)
HSL	hsl(241, 65%, 52%)
HSV	hsv(241, 76%, 83%)
CMYK	cmyk(74.1%, 75.9%, 0%, 16.9%)
CIE-LAB	lab(33.84, 53.19, -80.76)
CIE-LCH	lch(33.84, 96.70, 303.37°)
OKLab	oklab(45.26% 0.012 -0.2337)
OKLCH	oklch(45.26% 0.234 272.9)
XYZ	xyz(14.6391, 7.9318, 63.0341)
Luminance	0.0793 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.46

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3733D4 #D0D433

analogous

#3380D4 #3733D4 #8833D4

triadic

#3733D4 #D43733 #33D437

tetradic

#3733D4 #D43380 #D0D433 #33D488

square

#3733D4 #D43380 #D0D433 #33D488

split-complementary

#3733D4 #D48833 #80D433

monochromatic

#1B1874 #2623A7 #3733D4 #6966DF #9A98E9

Accessibility & contrast

On white

8.12

#3733D4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#3733D4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3733D4

8.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3733D4	#FFFFFF	#000000	##FFFFFF
##3733D4	1.00	8.12	2.59	8.12
#FFFFFF	8.12	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057D9

Deuteranopia (green-blind)

#0048D1

Tritanopia (blue-blind)

#006382

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3733d4;
/* rgb */ color: rgb(55, 51, 212);
/* oklch */ color: oklch(45.3% 0.234 272.9);

Tailwind

colors: {
  custom: {
    50: '#876de3',
    500: '#3733d4',
    950: '#000000',
  },
}

SCSS

$custom: #3733d4;
$custom-light: #876de3;
$custom-dark: #000000;

JSON

{
  "hex": "#3733d4",
  "rgb": {
    "r": 55,
    "g": 51,
    "b": 212
  },
  "hsl": {
    "h": 241.491,
    "s": 65.182,
    "l": 51.569
  },
  "oklch": {
    "l": 0.45257,
    "c": 0.234,
    "h": 272.9
  },
  "luminance": 0.07933
}

Semantic roles & 50–950 ramp

primary

#3733D4

secondary

#D3D58E

accent

#E840E4

background

#F9F6FE

surface

#F1ECFC

border

#CBC7D5

text

#0D0716

muted

#7E7A84

Preview Lab

Preview with #3733D4

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

Preview Lab → · Contrast checker → · Palette generator →