#3837C1#3837C1

#3837C1 is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 43.9% C 0.207 H 274.1°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#3837C1
RGB	rgb(56, 55, 193)
HSL	hsl(240, 56%, 49%)
HSV	hsv(240, 72%, 76%)
CMYK	cmyk(71%, 71.5%, 0%, 24.3%)
CIE-LAB	lab(32.75, 44.95, -71.48)
CIE-LCH	lch(32.75, 84.44, 302.16°)
OKLab	oklab(43.92% 0.0148 -0.2067)
OKLCH	oklch(43.92% 0.207 274.1)
XYZ	xyz(12.6195, 7.4222, 51.2093)
Luminance	0.0742 (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

#3837C1 #C0C137

analogous

#377BC1 #3837C1 #7D37C1

triadic

#3837C1 #C13837 #37C138

tetradic

#3837C1 #C1377B #C0C137 #37C17D

square

#3837C1 #C1377B #C0C137 #37C17D

split-complementary

#3837C1 #C17D37 #7BC137

monochromatic

#1C1C62 #2A2991 #3837C1 #6463D2 #9392E0

Accessibility & contrast

On white

8.45

#3837C1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#3837C1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3837C1

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3837C1	#FFFFFF	#000000	##FFFFFF
##3837C1	1.00	8.45	2.48	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C5

Deuteranopia (green-blind)

#0046BE

Tritanopia (blue-blind)

#005E78

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3837c1;
/* rgb */ color: rgb(56, 55, 193);
/* oklch */ color: oklch(43.9% 0.207 274.1);

Tailwind

colors: {
  custom: {
    50: '#826fd5',
    500: '#3837c1',
    950: '#000000',
  },
}

SCSS

$custom: #3837c1;
$custom-light: #826fd5;
$custom-dark: #000000;

JSON

{
  "hex": "#3837c1",
  "rgb": {
    "r": 56,
    "g": 55,
    "b": 193
  },
  "hsl": {
    "h": 240.435,
    "s": 55.645,
    "l": 48.627
  },
  "oklch": {
    "l": 0.43923,
    "c": 0.20723,
    "h": 274.1
  },
  "luminance": 0.07423
}

Semantic roles & 50–950 ramp

primary

#3837C1

secondary

#CBCB89

accent

#DF49DE

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3837C1

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

Preview Lab → · Contrast checker → · Palette generator →