#3831C9#3831C9

#3831C9 is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 43.9% C 0.223 H 274.2°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#3831C9
RGB	rgb(56, 49, 201)
HSL	hsl(243, 61%, 49%)
HSV	hsv(243, 76%, 79%)
CMYK	cmyk(72.1%, 75.6%, 0%, 21.2%)
CIE-LAB	lab(32.38, 50.86, -76.78)
CIE-LCH	lch(32.38, 92.10, 303.52°)
OKLab	oklab(43.9% 0.0163 -0.2221)
OKLCH	oklch(43.9% 0.223 274.2)
XYZ	xyz(13.2683, 7.2531, 55.9477)
Luminance	0.0725 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.83

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3831C9 #C2C931

analogous

#3176C9 #3831C9 #8431C9

triadic

#3831C9 #C93831 #31C938

tetradic

#3831C9 #C93176 #C2C931 #31C984

square

#3831C9 #C93176 #C2C931 #31C984

split-complementary

#3831C9 #C98431 #76C931

monochromatic

#1D1967 #2A2598 #3831C9 #655FD8 #9490E4

Accessibility & contrast

On white

8.57

#3831C9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#3831C9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3831C9

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3831C9	#FFFFFF	#000000	##FFFFFF
##3831C9	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053CD

Deuteranopia (green-blind)

#0045C6

Tritanopia (blue-blind)

#005E7B

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3831c9;
/* rgb */ color: rgb(56, 49, 201);
/* oklch */ color: oklch(43.9% 0.223 274.2);

Tailwind

colors: {
  custom: {
    50: '#856cdb',
    500: '#3831c9',
    950: '#000000',
  },
}

SCSS

$custom: #3831c9;
$custom-light: #856cdb;
$custom-dark: #000000;

JSON

{
  "hex": "#3831c9",
  "rgb": {
    "r": 56,
    "g": 49,
    "b": 201
  },
  "hsl": {
    "h": 242.763,
    "s": 60.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.439,
    "c": 0.2227,
    "h": 274.2
  },
  "luminance": 0.07254
}

Semantic roles & 50–950 ramp

primary

#3831C9

secondary

#CBCF87

accent

#E444DD

background

#F9F6FD

surface

#F1EBFB

border

#CBC6D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3831C9

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

Preview Lab → · Contrast checker → · Palette generator →