#3837DA#3837DA

#3837DA is a mid, highly saturated blue. Relative luminance 0.086; OKLCH L 46.5% C 0.237 H 272.5°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#3837DA
RGB	rgb(56, 55, 218)
HSL	hsl(240, 69%, 54%)
HSV	hsv(240, 75%, 85%)
CMYK	cmyk(74.3%, 74.8%, 0%, 14.5%)
CIE-LAB	lab(35.27, 53.05, -81.85)
CIE-LCH	lch(35.27, 97.54, 302.95°)
OKLab	oklab(46.47% 0.0104 -0.2369)
OKLCH	oklch(46.47% 0.237 272.5)
XYZ	xyz(15.6477, 8.6334, 67.1578)
Luminance	0.0863 (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

#3837DA #D9DA37

analogous

#3787DA #3837DA #8937DA

triadic

#3837DA #DA3837 #37DA38

tetradic

#3837DA #DA3787 #D9DA37 #37DA89

square

#3837DA #DA3787 #D9DA37 #37DA89

split-complementary

#3837DA #DA8937 #87DA37

monochromatic

#18187F #2221B3 #3837DA #6B6BE4 #9F9EED

Accessibility & contrast

On white

7.70

#3837DA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#3837DA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3837DA

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3837DA	#FFFFFF	#000000	##FFFFFF
##3837DA	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BDF

Deuteranopia (green-blind)

#004BD7

Tritanopia (blue-blind)

#006786

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3837da;
/* rgb */ color: rgb(56, 55, 218);
/* oklch */ color: oklch(46.5% 0.237 272.5);

Tailwind

colors: {
  custom: {
    50: '#8870e7',
    500: '#3837da',
    950: '#000000',
  },
}

SCSS

$custom: #3837da;
$custom-light: #8870e7;
$custom-dark: #000000;

JSON

{
  "hex": "#3837da",
  "rgb": {
    "r": 56,
    "g": 55,
    "b": 218
  },
  "hsl": {
    "h": 240.368,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.46465,
    "c": 0.23712,
    "h": 272.5
  },
  "luminance": 0.08635
}

Semantic roles & 50–950 ramp

primary

#3837DA

secondary

#D9D993

accent

#EC3CEB

background

#F9F6FE

surface

#F2ECFD

border

#CCC7D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #3837DA

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

Preview Lab → · Contrast checker → · Palette generator →