#3F18A0#3F18A0

#3F18A0 is a dark, vivid violet. Relative luminance 0.042; OKLCH L 37.2% C 0.195 H 284.9°. Best body text is #FFFFFF at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#3F18A0
RGB	rgb(63, 24, 160)
HSL	hsl(257, 74%, 36%)
HSV	hsv(257, 85%, 63%)
CMYK	cmyk(60.6%, 85%, 0%, 37.3%)
CIE-LAB	lab(24.47, 51.05, -65.39)
CIE-LCH	lch(24.47, 82.96, 307.98°)
OKLab	oklab(37.24% 0.0502 -0.1884)
OKLCH	oklch(37.24% 0.195 284.9)
XYZ	xyz(8.7198, 4.2475, 33.6113)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F18A0 #79A018

analogous

#1835A0 #3F18A0 #8318A0

triadic

#3F18A0 #A03F18 #18A03F

tetradic

#3F18A0 #A01835 #79A018 #18A083

square

#3F18A0 #A01835 #79A018 #18A083

split-complementary

#3F18A0 #A08318 #35A018

monochromatic

#150836 #2A106B #3F18A0 #5420D5 #794EE4

Accessibility & contrast

On white

11.35

#3F18A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#3F18A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F18A0

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F18A0	#FFFFFF	#000000	##FFFFFF
##3F18A0	1.00	11.35	1.85	11.35
#FFFFFF	11.35	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA4

Deuteranopia (green-blind)

#00369E

Tritanopia (blue-blind)

#00435F

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #3f18a0;
/* rgb */ color: rgb(63, 24, 160);
/* oklch */ color: oklch(37.2% 0.195 284.9);

Tailwind

colors: {
  custom: {
    50: '#815dbd',
    500: '#3f18a0',
    950: '#000000',
  },
}

SCSS

$custom: #3f18a0;
$custom-light: #815dbd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f18a0",
  "rgb": {
    "r": 63,
    "g": 24,
    "b": 160
  },
  "hsl": {
    "h": 257.206,
    "s": 73.913,
    "l": 36.078
  },
  "oklch": {
    "l": 0.37241,
    "c": 0.195,
    "h": 284.9
  },
  "luminance": 0.04248
}

Semantic roles & 50–950 ramp

primary

#3F18A0

secondary

#A4C64D

accent

#F137BB

background

#F8F5FB

surface

#F0E9F7

border

#CBC5D0

text

#0C0412

muted

#7D7981

Preview Lab

Preview with #3F18A0

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

Preview Lab → · Contrast checker → · Palette generator →