#3831AD#3831AD

#3831AD is a dark, vivid blue. Relative luminance 0.061; OKLCH L 41.0% C 0.189 H 276.6°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#3831AD
RGB	rgb(56, 49, 173)
HSL	hsl(243, 56%, 44%)
HSV	hsv(243, 72%, 68%)
CMYK	cmyk(67.6%, 71.7%, 0%, 32.2%)
CIE-LAB	lab(29.55, 41.82, -64.89)
CIE-LCH	lch(29.55, 77.20, 302.80°)
OKLab	oklab(41.05% 0.0217 -0.1874)
OKLCH	oklch(41.05% 0.189 276.6)
XYZ	xyz(10.2696, 6.0536, 40.1543)
Luminance	0.0605 (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

#3831AD #A6AD31

analogous

#3168AD #3831AD #7631AD

triadic

#3831AD #AD3831 #31AD38

tetradic

#3831AD #AD3168 #A6AD31 #31AD76

square

#3831AD #AD3168 #A6AD31 #31AD76

split-complementary

#3831AD #AD7631 #68AD31

monochromatic

#19164E #29237D #3831AD #554ECD #837EDA

Accessibility & contrast

On white

9.50

#3831AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#3831AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3831AD

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3831AD	#FFFFFF	#000000	##FFFFFF
##3831AD	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB1

Deuteranopia (green-blind)

#0040AB

Tritanopia (blue-blind)

#00536B

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3831ad;
/* rgb */ color: rgb(56, 49, 173);
/* oklch */ color: oklch(41.0% 0.189 276.6);

Tailwind

colors: {
  custom: {
    50: '#7f6bc7',
    500: '#3831ad',
    950: '#000000',
  },
}

SCSS

$custom: #3831ad;
$custom-light: #7f6bc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3831ad",
  "rgb": {
    "r": 56,
    "g": 49,
    "b": 173
  },
  "hsl": {
    "h": 243.387,
    "s": 55.856,
    "l": 43.529
  },
  "oklch": {
    "l": 0.41047,
    "c": 0.1887,
    "h": 276.6
  },
  "luminance": 0.06055
}

Semantic roles & 50–950 ramp

primary

#3831AD

secondary

#BFC377

accent

#DF49D7

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3831AD

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

Preview Lab → · Contrast checker → · Palette generator →