#3A1B9B#3A1B9B

#3A1B9B is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.5% C 0.188 H 283.1°. Best body text is #FFFFFF at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#3A1B9B
RGB	rgb(58, 27, 155)
HSL	hsl(255, 70%, 36%)
HSV	hsv(255, 83%, 61%)
CMYK	cmyk(62.6%, 82.6%, 0%, 39.2%)
CIE-LAB	lab(23.83, 47.89, -63.40)
CIE-LCH	lch(23.83, 79.46, 307.07°)
OKLab	oklab(36.52% 0.0424 -0.1828)
OKLCH	oklch(36.52% 0.188 283.1)
XYZ	xyz(8.0514, 4.0494, 31.3613)
Luminance	0.0405 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A1B9B #7C9B1B

analogous

#1B3C9B #3A1B9B #7A1B9B

triadic

#3A1B9B #9B3A1B #1B9B3A

tetradic

#3A1B9B #9B1B3C #7C9B1B #1B9B7A

square

#3A1B9B #9B1B3C #7C9B1B #1B9B7A

split-complementary

#3A1B9B #9B7A1B #3C9B1B

monochromatic

#130933 #261267 #3A1B9B #4E24CF #7350E0

Accessibility & contrast

On white

11.60

#3A1B9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#3A1B9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A1B9B

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A1B9B	#FFFFFF	#000000	##FFFFFF
##3A1B9B	1.00	11.60	1.81	11.60
#FFFFFF	11.60	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D9E

Deuteranopia (green-blind)

#003499

Tritanopia (blue-blind)

#00425C

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #3a1b9b;
/* rgb */ color: rgb(58, 27, 155);
/* oklch */ color: oklch(36.5% 0.188 283.1);

Tailwind

colors: {
  custom: {
    50: '#7e5dba',
    500: '#3a1b9b',
    950: '#000000',
  },
}

SCSS

$custom: #3a1b9b;
$custom-light: #7e5dba;
$custom-dark: #000000;

JSON

{
  "hex": "#3a1b9b",
  "rgb": {
    "r": 58,
    "g": 27,
    "b": 155
  },
  "hsl": {
    "h": 254.531,
    "s": 70.33,
    "l": 35.686
  },
  "oklch": {
    "l": 0.36516,
    "c": 0.18769,
    "h": 283.1
  },
  "luminance": 0.0405
}

Semantic roles & 50–950 ramp

primary

#3A1B9B

secondary

#A7C34F

accent

#ED3BC2

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0B0412

muted

#7C7981

Preview Lab

Preview with #3A1B9B

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

Preview Lab → · Contrast checker → · Palette generator →