#3837C3#3837C3

#3837C3 is a dark, highly saturated blue. Relative luminance 0.075; OKLCH L 44.1% C 0.210 H 273.9°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#3837C3
RGB	rgb(56, 55, 195)
HSL	hsl(240, 56%, 49%)
HSV	hsv(240, 72%, 76%)
CMYK	cmyk(71.3%, 71.8%, 0%, 23.5%)
CIE-LAB	lab(32.95, 45.61, -72.33)
CIE-LCH	lch(32.95, 85.51, 302.23°)
OKLab	oklab(44.12% 0.0144 -0.2092)
OKLCH	oklch(44.12% 0.21 273.9)
XYZ	xyz(12.8441, 7.5120, 52.3922)
Luminance	0.0751 (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

#3837C3 #C2C337

analogous

#377CC3 #3837C3 #7E37C3

triadic

#3837C3 #C33837 #37C338

tetradic

#3837C3 #C3377C #C2C337 #37C37E

square

#3837C3 #C3377C #C2C337 #37C37E

split-complementary

#3837C3 #C37E37 #7CC337

monochromatic

#1D1C64 #2A2A93 #3837C3 #6564D3 #9494E1

Accessibility & contrast

On white

8.39

#3837C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#3837C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3837C3

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3837C3	#FFFFFF	#000000	##FFFFFF
##3837C3	1.00	8.39	2.50	8.39
#FFFFFF	8.39	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C7

Deuteranopia (green-blind)

#0047C0

Tritanopia (blue-blind)

#005E79

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3837c3;
/* rgb */ color: rgb(56, 55, 195);
/* oklch */ color: oklch(44.1% 0.210 273.9);

Tailwind

colors: {
  custom: {
    50: '#836fd6',
    500: '#3837c3',
    950: '#000000',
  },
}

SCSS

$custom: #3837c3;
$custom-light: #836fd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3837c3",
  "rgb": {
    "r": 56,
    "g": 55,
    "b": 195
  },
  "hsl": {
    "h": 240.429,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.44122,
    "c": 0.20969,
    "h": 273.9
  },
  "luminance": 0.07513
}

Semantic roles & 50–950 ramp

primary

#3837C3

secondary

#CBCC8A

accent

#DF49DE

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #3837C3

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

Preview Lab → · Contrast checker → · Palette generator →