#3837C5#3837C5

#3837C5 is a dark, highly saturated blue. Relative luminance 0.076; OKLCH L 44.3% C 0.212 H 273.8°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#3837C5
RGB	rgb(56, 55, 197)
HSL	hsl(240, 56%, 49%)
HSV	hsv(240, 72%, 77%)
CMYK	cmyk(71.6%, 72.1%, 0%, 22.7%)
CIE-LAB	lab(33.14, 46.27, -73.18)
CIE-LCH	lch(33.14, 86.58, 302.30°)
OKLab	oklab(44.32% 0.0141 -0.2116)
OKLCH	oklch(44.32% 0.212 273.8)
XYZ	xyz(13.0718, 7.6031, 53.5911)
Luminance	0.0760 (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

#3837C5 #C4C537

analogous

#377DC5 #3837C5 #7F37C5

triadic

#3837C5 #C53837 #37C538

tetradic

#3837C5 #C5377D #C4C537 #37C57F

square

#3837C5 #C5377D #C4C537 #37C57F

split-complementary

#3837C5 #C57F37 #7DC537

monochromatic

#1D1C65 #2A2A95 #3837C5 #6665D4 #9695E1

Accessibility & contrast

On white

8.33

#3837C5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#3837C5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3837C5

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3837C5	#FFFFFF	#000000	##FFFFFF
##3837C5	1.00	8.33	2.52	8.33
#FFFFFF	8.33	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C9

Deuteranopia (green-blind)

#0047C2

Tritanopia (blue-blind)

#005F7A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3837c5;
/* rgb */ color: rgb(56, 55, 197);
/* oklch */ color: oklch(44.3% 0.212 273.8);

Tailwind

colors: {
  custom: {
    50: '#836fd8',
    500: '#3837c5',
    950: '#000000',
  },
}

SCSS

$custom: #3837c5;
$custom-light: #836fd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3837c5",
  "rgb": {
    "r": 56,
    "g": 55,
    "b": 197
  },
  "hsl": {
    "h": 240.423,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.44322,
    "c": 0.21212,
    "h": 273.8
  },
  "luminance": 0.07604
}

Semantic roles & 50–950 ramp

primary

#3837C5

secondary

#CCCD8B

accent

#E048DF

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #3837C5

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

Preview Lab → · Contrast checker → · Palette generator →