#3937D0#3937D0

#3937D0 is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.5% C 0.225 H 273.4°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#3937D0
RGB	rgb(57, 55, 208)
HSL	hsl(241, 62%, 52%)
HSV	hsv(241, 74%, 82%)
CMYK	cmyk(72.6%, 73.6%, 0%, 18.4%)
CIE-LAB	lab(34.30, 49.94, -77.67)
CIE-LCH	lch(34.30, 92.34, 302.74°)
OKLab	oklab(45.49% 0.0134 -0.2247)
OKLCH	oklch(45.49% 0.225 273.4)
XYZ	xyz(14.4349, 8.1548, 60.4756)
Luminance	0.0816 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.19

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3937D0 #CED037

analogous

#3782D0 #3937D0 #8637D0

triadic

#3937D0 #D03937 #37D039

tetradic

#3937D0 #D03782 #CED037 #37D086

square

#3937D0 #D03782 #CED037 #37D086

split-complementary

#3937D0 #D08637 #82D037

monochromatic

#1C1B72 #2826A3 #3937D0 #6A69DC #9B9AE7

Accessibility & contrast

On white

7.98

#3937D0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3937D0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3937D0

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3937D0	#FFFFFF	#000000	##FFFFFF
##3937D0	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058D4

Deuteranopia (green-blind)

#0049CD

Tritanopia (blue-blind)

#006381

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3937d0;
/* rgb */ color: rgb(57, 55, 208);
/* oklch */ color: oklch(45.5% 0.225 273.4);

Tailwind

colors: {
  custom: {
    50: '#8670e0',
    500: '#3937d0',
    950: '#000000',
  },
}

SCSS

$custom: #3937d0;
$custom-light: #8670e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3937d0",
  "rgb": {
    "r": 57,
    "g": 55,
    "b": 208
  },
  "hsl": {
    "h": 240.784,
    "s": 61.943,
    "l": 51.569
  },
  "oklch": {
    "l": 0.45493,
    "c": 0.22511,
    "h": 273.4
  },
  "luminance": 0.08156
}

Semantic roles & 50–950 ramp

primary

#3937D0

secondary

#D2D390

accent

#E543E3

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3937D0

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

Preview Lab → · Contrast checker → · Palette generator →