#3837A6#3837A6

#3837A6 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.3% C 0.173 H 276.1°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#3837A6
RGB	rgb(56, 55, 166)
HSL	hsl(241, 50%, 43%)
HSV	hsv(241, 67%, 65%)
CMYK	cmyk(66.3%, 66.9%, 0%, 34.9%)
CIE-LAB	lab(30.22, 35.86, -59.59)
CIE-LCH	lch(30.22, 69.54, 301.04°)
OKLab	oklab(41.33% 0.0184 -0.1719)
OKLCH	oklch(41.33% 0.173 276.1)
XYZ	xyz(9.8778, 6.3255, 36.7694)
Luminance	0.0633 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.02

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3837A6 #A5A637

analogous

#376DA6 #3837A6 #6F37A6

triadic

#3837A6 #A63837 #37A638

tetradic

#3837A6 #A6376D #A5A637 #37A66F

square

#3837A6 #A6376D #A5A637 #37A66F

split-complementary

#3837A6 #A66F37 #6DA637

monochromatic

#19194A #282878 #3837A6 #5554C6 #8382D6

Accessibility & contrast

On white

9.27

#3837A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#3837A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3837A6

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3837A6	#FFFFFF	#000000	##FFFFFF
##3837A6	1.00	9.27	2.27	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA9

Deuteranopia (green-blind)

#0042A4

Tritanopia (blue-blind)

#005469

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3837a6;
/* rgb */ color: rgb(56, 55, 166);
/* oklch */ color: oklch(41.3% 0.173 276.1);

Tailwind

colors: {
  custom: {
    50: '#7d6ec1',
    500: '#3837a6',
    950: '#000000',
  },
}

SCSS

$custom: #3837a6;
$custom-light: #7d6ec1;
$custom-dark: #000000;

JSON

{
  "hex": "#3837a6",
  "rgb": {
    "r": 56,
    "g": 55,
    "b": 166
  },
  "hsl": {
    "h": 240.541,
    "s": 50.226,
    "l": 43.333
  },
  "oklch": {
    "l": 0.41332,
    "c": 0.1729,
    "h": 276.1
  },
  "luminance": 0.06326
}

Semantic roles & 50–950 ramp

primary

#3837A6

secondary

#BEBF7A

accent

#DA4ED8

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3837A6

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

Preview Lab → · Contrast checker → · Palette generator →