#3831AC#3831AC

#3831AC is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.9% C 0.187 H 276.7°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#3831AC
RGB	rgb(56, 49, 172)
HSL	hsl(243, 56%, 43%)
HSV	hsv(243, 72%, 67%)
CMYK	cmyk(67.4%, 71.5%, 0%, 32.5%)
CIE-LAB	lab(29.45, 41.49, -64.45)
CIE-LCH	lch(29.45, 76.65, 302.77°)
OKLab	oklab(40.95% 0.0219 -0.1862)
OKLCH	oklch(40.95% 0.187 276.7)
XYZ	xyz(10.1732, 6.0150, 39.6466)
Luminance	0.0602 (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

#3831AC #A5AC31

analogous

#3167AC #3831AC #7531AC

triadic

#3831AC #AC3831 #31AC38

tetradic

#3831AC #AC3167 #A5AC31 #31AC75

square

#3831AC #AC3167 #A5AC31 #31AC75

split-complementary

#3831AC #AC7531 #67AC31

monochromatic

#19164D #28237C #3831AC #554ECC #837DDA

Accessibility & contrast

On white

9.53

#3831AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#3831AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3831AC

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3831AC	#FFFFFF	#000000	##FFFFFF
##3831AC	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB0

Deuteranopia (green-blind)

#0040AA

Tritanopia (blue-blind)

#00536B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3831ac;
/* rgb */ color: rgb(56, 49, 172);
/* oklch */ color: oklch(40.9% 0.187 276.7);

Tailwind

colors: {
  custom: {
    50: '#7e6ac6',
    500: '#3831ac',
    950: '#000000',
  },
}

SCSS

$custom: #3831ac;
$custom-light: #7e6ac6;
$custom-dark: #000000;

JSON

{
  "hex": "#3831ac",
  "rgb": {
    "r": 56,
    "g": 49,
    "b": 172
  },
  "hsl": {
    "h": 243.415,
    "s": 55.656,
    "l": 43.333
  },
  "oklch": {
    "l": 0.40948,
    "c": 0.18744,
    "h": 276.7
  },
  "luminance": 0.06016
}

Semantic roles & 50–950 ramp

primary

#3831AC

secondary

#BEC376

accent

#DF49D6

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3831AC

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

Preview Lab → · Contrast checker → · Palette generator →