#3818B4#3818B4

#3818B4 is a dark, highly saturated violet. Relative luminance 0.048; OKLCH L 38.9% C 0.218 H 278.4°. Best body text is #FFFFFF at 10.73:1 contrast (WCAG AA passes).

Color values

HEX	#3818B4
RGB	rgb(56, 24, 180)
HSL	hsl(252, 76%, 40%)
HSV	hsv(252, 87%, 71%)
CMYK	cmyk(68.9%, 86.7%, 0%, 29.4%)
CIE-LAB	lab(26.12, 55.99, -74.74)
CIE-LCH	lch(26.12, 93.38, 306.84°)
OKLab	oklab(38.88% 0.0319 -0.2158)
OKLCH	oklch(38.88% 0.218 278.4)
XYZ	xyz(10.1931, 4.7884, 43.5583)
Luminance	0.0479 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3818B4 #94B418

analogous

#1846B4 #3818B4 #8618B4

triadic

#3818B4 #B43818 #18B438

tetradic

#3818B4 #B41846 #94B418 #18B486

square

#3818B4 #B41846 #94B418 #18B486

split-complementary

#3818B4 #B48618 #46B418

monochromatic

#160A48 #27117E #3818B4 #4D27E2 #7A5DE9

Accessibility & contrast

On white

10.73

#3818B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#3818B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3818B4

10.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3818B4	#FFFFFF	#000000	##FFFFFF
##3818B4	1.00	10.73	1.96	10.73
#FFFFFF	10.73	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044B8

Deuteranopia (green-blind)

#0037B1

Tritanopia (blue-blind)

#004C6A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #3818b4;
/* rgb */ color: rgb(56, 24, 180);
/* oklch */ color: oklch(38.9% 0.218 278.4);

Tailwind

colors: {
  custom: {
    50: '#825dcc',
    500: '#3818b4',
    950: '#000000',
  },
}

SCSS

$custom: #3818b4;
$custom-light: #825dcc;
$custom-dark: #000000;

JSON

{
  "hex": "#3818b4",
  "rgb": {
    "r": 56,
    "g": 24,
    "b": 180
  },
  "hsl": {
    "h": 252.308,
    "s": 76.471,
    "l": 40
  },
  "oklch": {
    "l": 0.38878,
    "c": 0.21814,
    "h": 278.4
  },
  "luminance": 0.04789
}

Semantic roles & 50–950 ramp

primary

#3818B4

secondary

#B6CD5B

accent

#F335CC

background

#F8F5FC

surface

#F0E9F9

border

#CBC5D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #3818B4

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

Preview Lab → · Contrast checker → · Palette generator →