#3937DA#3937DA

#3937DA is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.5% C 0.237 H 272.8°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#3937DA
RGB	rgb(57, 55, 218)
HSL	hsl(241, 69%, 54%)
HSV	hsv(241, 75%, 85%)
CMYK	cmyk(73.9%, 74.8%, 0%, 14.5%)
CIE-LAB	lab(35.33, 53.13, -81.75)
CIE-LCH	lch(35.33, 97.50, 303.02°)
OKLab	oklab(46.52% 0.0116 -0.2366)
OKLCH	oklch(46.52% 0.237 272.8)
XYZ	xyz(15.7042, 8.6626, 67.1605)
Luminance	0.0866 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.26

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3937DA #D8DA37

analogous

#3786DA #3937DA #8A37DA

triadic

#3937DA #DA3937 #37DA39

tetradic

#3937DA #DA3786 #D8DA37 #37DA8A

square

#3937DA #DA3786 #D8DA37 #37DA8A

split-complementary

#3937DA #DA8A37 #86DA37

monochromatic

#19187F #2321B3 #3937DA #6C6BE4 #9F9EED

Accessibility & contrast

On white

7.68

#3937DA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#3937DA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3937DA

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3937DA	#FFFFFF	#000000	##FFFFFF
##3937DA	1.00	7.68	2.73	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.68	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: #3937da;
/* rgb */ color: rgb(57, 55, 218);
/* oklch */ color: oklch(46.5% 0.237 272.8);

Tailwind

colors: {
  custom: {
    50: '#8870e7',
    500: '#3937da',
    950: '#000000',
  },
}

SCSS

$custom: #3937da;
$custom-light: #8870e7;
$custom-dark: #000000;

JSON

{
  "hex": "#3937da",
  "rgb": {
    "r": 57,
    "g": 55,
    "b": 218
  },
  "hsl": {
    "h": 240.736,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.46522,
    "c": 0.23687,
    "h": 272.8
  },
  "luminance": 0.08664
}

Semantic roles & 50–950 ramp

primary

#3937DA

secondary

#D8D993

accent

#EC3CE9

background

#F9F6FE

surface

#F2ECFD

border

#CCC7D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #3937DA

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

Preview Lab → · Contrast checker → · Palette generator →