#3837C0#3837C0

#3837C0 is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 43.8% C 0.206 H 274.2°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#3837C0
RGB	rgb(56, 55, 192)
HSL	hsl(240, 55%, 48%)
HSV	hsv(240, 71%, 75%)
CMYK	cmyk(70.8%, 71.4%, 0%, 24.7%)
CIE-LAB	lab(32.65, 44.62, -71.06)
CIE-LCH	lch(32.65, 83.90, 302.13°)
OKLab	oklab(43.82% 0.0149 -0.2055)
OKLCH	oklch(43.82% 0.206 274.2)
XYZ	xyz(12.5083, 7.3777, 50.6238)
Luminance	0.0738 (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

#3837C0 #BFC037

analogous

#377AC0 #3837C0 #7C37C0

triadic

#3837C0 #C03837 #37C038

tetradic

#3837C0 #C0377A #BFC037 #37C07C

square

#3837C0 #C0377A #BFC037 #37C07C

split-complementary

#3837C0 #C07C37 #7AC037

monochromatic

#1C1C61 #2A2990 #3837C0 #6362D2 #9292E0

Accessibility & contrast

On white

8.48

#3837C0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#3837C0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3837C0

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3837C0	#FFFFFF	#000000	##FFFFFF
##3837C0	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C4

Deuteranopia (green-blind)

#0046BD

Tritanopia (blue-blind)

#005D78

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3837c0;
/* rgb */ color: rgb(56, 55, 192);
/* oklch */ color: oklch(43.8% 0.206 274.2);

Tailwind

colors: {
  custom: {
    50: '#826fd4',
    500: '#3837c0',
    950: '#000000',
  },
}

SCSS

$custom: #3837c0;
$custom-light: #826fd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3837c0",
  "rgb": {
    "r": 56,
    "g": 55,
    "b": 192
  },
  "hsl": {
    "h": 240.438,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.43824,
    "c": 0.206,
    "h": 274.2
  },
  "luminance": 0.07379
}

Semantic roles & 50–950 ramp

primary

#3837C0

secondary

#CACB88

accent

#DF49DE

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3837C0

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

Preview Lab → · Contrast checker → · Palette generator →