#3F17A1#3F17A1

#3F17A1 is a dark, vivid violet. Relative luminance 0.042; OKLCH L 37.3% C 0.197 H 284.8°. Best body text is #FFFFFF at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#3F17A1
RGB	rgb(63, 23, 161)
HSL	hsl(257, 75%, 36%)
HSV	hsv(257, 86%, 63%)
CMYK	cmyk(60.9%, 85.7%, 0%, 36.9%)
CIE-LAB	lab(24.46, 51.71, -66.02)
CIE-LCH	lch(24.46, 83.86, 308.07°)
OKLab	oklab(37.26% 0.0503 -0.1903)
OKLCH	oklch(37.26% 0.197 284.8)
XYZ	xyz(8.7873, 4.2422, 34.0671)
Luminance	0.0424 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F17A1 #79A117

analogous

#1734A1 #3F17A1 #8417A1

triadic

#3F17A1 #A13F17 #17A13F

tetradic

#3F17A1 #A11734 #79A117 #17A184

square

#3F17A1 #A11734 #79A117 #17A184

split-complementary

#3F17A1 #A18417 #34A117

monochromatic

#150836 #2A0F6B #3F17A1 #541FD7 #794DE6

Accessibility & contrast

On white

11.36

#3F17A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#3F17A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F17A1

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F17A1	#FFFFFF	#000000	##FFFFFF
##3F17A1	1.00	11.36	1.85	11.36
#FFFFFF	11.36	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA5

Deuteranopia (green-blind)

#00369F

Tritanopia (blue-blind)

#00435F

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #3f17a1;
/* rgb */ color: rgb(63, 23, 161);
/* oklch */ color: oklch(37.3% 0.197 284.8);

Tailwind

colors: {
  custom: {
    50: '#815cbe',
    500: '#3f17a1',
    950: '#000000',
  },
}

SCSS

$custom: #3f17a1;
$custom-light: #815cbe;
$custom-dark: #000000;

JSON

{
  "hex": "#3f17a1",
  "rgb": {
    "r": 63,
    "g": 23,
    "b": 161
  },
  "hsl": {
    "h": 257.391,
    "s": 75,
    "l": 36.078
  },
  "oklch": {
    "l": 0.37262,
    "c": 0.19681,
    "h": 284.8
  },
  "luminance": 0.04243
}

Semantic roles & 50–950 ramp

primary

#3F17A1

secondary

#A4C74C

accent

#F236BB

background

#F8F5FB

surface

#F0E9F7

border

#CBC5D0

text

#0C0412

muted

#7D7981

Preview Lab

Preview with #3F17A1

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

Preview Lab → · Contrast checker → · Palette generator →