#3F105B#3F105B

#3F105B is a dark, vivid violet. Relative luminance 0.022; OKLCH L 29.6% C 0.127 H 309.0°. Best body text is #FFFFFF at 14.62:1 contrast (WCAG AA passes).

Color values

HEX	#3F105B
RGB	rgb(63, 16, 91)
HSL	hsl(278, 70%, 21%)
HSV	hsv(278, 82%, 36%)
CMYK	cmyk(30.8%, 82.4%, 0%, 64.3%)
CIE-LAB	lab(16.42, 35.95, -34.64)
CIE-LCH	lch(16.42, 49.92, 316.06°)
OKLab	oklab(29.57% 0.0796 -0.0983)
OKLCH	oklch(29.57% 0.127 309)
XYZ	xyz(4.1231, 2.1828, 10.0996)
Luminance	0.0218 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F105B #2C5B10

analogous

#19105B #3F105B #5B1051

triadic

#3F105B #5B3F10 #105B3F

tetradic

#3F105B #5B1910 #2C5B10 #10515B

square

#3F105B #5B1910 #2C5B10 #10515B

split-complementary

#3F105B #515B10 #105B19

monochromatic

#12051A #1B0727 #3F105B #63198F #8722C3

Accessibility & contrast

On white

14.62

#3F105B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#3F105B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F105B

14.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F105B	#FFFFFF	#000000	##FFFFFF
##3F105B	1.00	14.62	1.44	14.62
#FFFFFF	14.62	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00275D

Deuteranopia (green-blind)

#002959

Tritanopia (blue-blind)

#3B2235

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #3f105b;
/* rgb */ color: rgb(63, 16, 91);
/* oklch */ color: oklch(29.6% 0.127 309.0);

Tailwind

colors: {
  custom: {
    50: '#78548a',
    500: '#3f105b',
    950: '#000000',
  },
}

SCSS

$custom: #3f105b;
$custom-light: #78548a;
$custom-dark: #000000;

JSON

{
  "hex": "#3f105b",
  "rgb": {
    "r": 63,
    "g": 16,
    "b": 91
  },
  "hsl": {
    "h": 277.6,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.29567,
    "c": 0.1265,
    "h": 309
  },
  "luminance": 0.02183
}

Semantic roles & 50–950 ramp

primary

#3F105B

secondary

#579433

accent

#ED3B7D

background

#F7F5F8

surface

#EDE9F0

border

#C8C5CB

text

#09030C

muted

#7B787D

Preview Lab

Preview with #3F105B

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

Preview Lab → · Contrast checker → · Palette generator →