#3F1F9B#3F1F9B

#3F1F9B is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.4% C 0.184 H 285.1°. Best body text is #FFFFFF at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#3F1F9B
RGB	rgb(63, 31, 155)
HSL	hsl(255, 67%, 36%)
HSV	hsv(255, 80%, 61%)
CMYK	cmyk(59.4%, 80%, 0%, 39.2%)
CIE-LAB	lab(24.96, 46.64, -61.53)
CIE-LCH	lch(24.96, 77.21, 307.17°)
OKLab	oklab(37.42% 0.0479 -0.1773)
OKLCH	oklch(37.42% 0.184 285.1)
XYZ	xyz(8.4545, 4.4028, 31.4083)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F1F9B #7B9B1F

analogous

#1F3D9B #3F1F9B #7D1F9B

triadic

#3F1F9B #9B3F1F #1F9B3F

tetradic

#3F1F9B #9B1F3D #7B9B1F #1F9B7D

square

#3F1F9B #9B1F3D #7B9B1F #1F9B7D

split-complementary

#3F1F9B #9B7D1F #3D9B1F

monochromatic

#160B35 #2A1568 #3F1F9B #5429CE #7A57DD

Accessibility & contrast

On white

11.17

#3F1F9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#3F1F9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F1F9B

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F1F9B	#FFFFFF	#000000	##FFFFFF
##3F1F9B	1.00	11.17	1.88	11.17
#FFFFFF	11.17	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F9E

Deuteranopia (green-blind)

#003799

Tritanopia (blue-blind)

#09445D

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #3f1f9b;
/* rgb */ color: rgb(63, 31, 155);
/* oklch */ color: oklch(37.4% 0.184 285.1);

Tailwind

colors: {
  custom: {
    50: '#8060ba',
    500: '#3f1f9b',
    950: '#000000',
  },
}

SCSS

$custom: #3f1f9b;
$custom-light: #8060ba;
$custom-dark: #000000;

JSON

{
  "hex": "#3f1f9b",
  "rgb": {
    "r": 63,
    "g": 31,
    "b": 155
  },
  "hsl": {
    "h": 255.484,
    "s": 66.667,
    "l": 36.471
  },
  "oklch": {
    "l": 0.37418,
    "c": 0.18363,
    "h": 285.1
  },
  "luminance": 0.04403
}

Semantic roles & 50–950 ramp

primary

#3F1F9B

secondary

#A5C155

accent

#EA3EBD

background

#F8F5FB

surface

#EFEAF6

border

#CAC6D0

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #3F1F9B

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

Preview Lab → · Contrast checker → · Palette generator →