#3818A0#3818A0

#3818A0 is a dark, vivid violet. Relative luminance 0.040; OKLCH L 36.6% C 0.196 H 281.5°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#3818A0
RGB	rgb(56, 24, 160)
HSL	hsl(254, 74%, 36%)
HSV	hsv(254, 85%, 63%)
CMYK	cmyk(65%, 85%, 0%, 37.3%)
CIE-LAB	lab(23.78, 50.39, -66.56)
CIE-LCH	lch(23.78, 83.48, 307.13°)
OKLab	oklab(36.59% 0.039 -0.192)
OKLCH	oklch(36.59% 0.196 281.5)
XYZ	xyz(8.3007, 4.0315, 33.5916)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3818A0 #80A018

analogous

#183CA0 #3818A0 #7C18A0

triadic

#3818A0 #A03818 #18A038

tetradic

#3818A0 #A0183C #80A018 #18A07C

square

#3818A0 #A0183C #80A018 #18A07C

split-complementary

#3818A0 #A07C18 #3CA018

monochromatic

#130836 #25106B #3818A0 #4B20D5 #714EE4

Accessibility & contrast

On white

11.63

#3818A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#3818A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3818A0

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3818A0	#FFFFFF	#000000	##FFFFFF
##3818A0	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA4

Deuteranopia (green-blind)

#00349E

Tritanopia (blue-blind)

#00445F

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #3818a0;
/* rgb */ color: rgb(56, 24, 160);
/* oklch */ color: oklch(36.6% 0.196 281.5);

Tailwind

colors: {
  custom: {
    50: '#7e5cbd',
    500: '#3818a0',
    950: '#000000',
  },
}

SCSS

$custom: #3818a0;
$custom-light: #7e5cbd;
$custom-dark: #000000;

JSON

{
  "hex": "#3818a0",
  "rgb": {
    "r": 56,
    "g": 24,
    "b": 160
  },
  "hsl": {
    "h": 254.118,
    "s": 73.913,
    "l": 36.078
  },
  "oklch": {
    "l": 0.36594,
    "c": 0.19597,
    "h": 281.5
  },
  "luminance": 0.04032
}

Semantic roles & 50–950 ramp

primary

#3818A0

secondary

#AAC64D

accent

#F137C5

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0B0412

muted

#7C7981

Preview Lab

Preview with #3818A0

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

Preview Lab → · Contrast checker → · Palette generator →