#3738D6#3738D6

#3738D6 is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 46.1% C 0.232 H 272.4°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#3738D6
RGB	rgb(55, 56, 214)
HSL	hsl(240, 66%, 53%)
HSV	hsv(240, 74%, 84%)
CMYK	cmyk(74.3%, 73.8%, 0%, 16.1%)
CIE-LAB	lab(34.99, 51.15, -80.01)
CIE-LCH	lch(34.99, 94.96, 302.59°)
OKLab	oklab(46.13% 0.0096 -0.2316)
OKLCH	oklch(46.13% 0.232 272.4)
XYZ	xyz(15.1232, 8.4940, 64.4478)
Luminance	0.0850 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.35

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3738D6 #D6D537

analogous

#3787D6 #3738D6 #8637D6

triadic

#3738D6 #D63738 #38D637

tetradic

#3738D6 #D63787 #D6D537 #37D686

square

#3738D6 #D63787 #D6D537 #37D686

split-complementary

#3738D6 #D68637 #87D637

monochromatic

#191A7A #2324AC #3738D6 #6A6BE0 #9D9DEB

Accessibility & contrast

On white

7.78

#3738D6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3738D6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3738D6

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3738D6	#FFFFFF	#000000	##FFFFFF
##3738D6	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ADB

Deuteranopia (green-blind)

#004AD3

Tritanopia (blue-blind)

#006684

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3738d6;
/* rgb */ color: rgb(55, 56, 214);
/* oklch */ color: oklch(46.1% 0.232 272.4);

Tailwind

colors: {
  custom: {
    50: '#8771e4',
    500: '#3738d6',
    950: '#000000',
  },
}

SCSS

$custom: #3738d6;
$custom-light: #8771e4;
$custom-dark: #000000;

JSON

{
  "hex": "#3738d6",
  "rgb": {
    "r": 55,
    "g": 56,
    "b": 214
  },
  "hsl": {
    "h": 239.623,
    "s": 65.975,
    "l": 52.745
  },
  "oklch": {
    "l": 0.46132,
    "c": 0.23176,
    "h": 272.4
  },
  "luminance": 0.08496
}

Semantic roles & 50–950 ramp

primary

#3738D6

secondary

#D7D692

accent

#E83FE9

background

#F9F6FE

surface

#F1ECFC

border

#CBC7D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #3738D6

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

Preview Lab → · Contrast checker → · Palette generator →