#330F5B#330F5B

#330F5B is a dark, vivid violet. Relative luminance 0.018; OKLCH L 27.8% C 0.125 H 299.4°. Best body text is #FFFFFF at 15.44:1 contrast (WCAG AA passes).

Color values

HEX	#330F5B
RGB	rgb(51, 15, 91)
HSL	hsl(268, 72%, 21%)
HSV	hsv(268, 84%, 36%)
CMYK	cmyk(44%, 83.5%, 0%, 64.3%)
CIE-LAB	lab(14.40, 34.08, -38.00)
CIE-LCH	lch(14.40, 51.04, 311.88°)
OKLab	oklab(27.76% 0.0613 -0.1087)
OKLCH	oklch(27.76% 0.125 299.4)
XYZ	xyz(3.4239, 1.8007, 10.0627)
Luminance	0.0180 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 3.62

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#330F5B #375B0F

analogous

#0F115B #330F5B #590F5B

triadic

#330F5B #5B330F #0F5B33

tetradic

#330F5B #5B0F11 #375B0F #0F5B59

square

#330F5B #5B0F11 #375B0F #0F5B59

split-complementary

#330F5B #5B590F #115B0F

monochromatic

#0F041A #160626 #330F5B #501890 #6E20C4

Accessibility & contrast

On white

15.44

#330F5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#330F5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #330F5B

15.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##330F5B	#FFFFFF	#000000	##FFFFFF
##330F5B	1.00	15.44	1.36	15.44
#FFFFFF	15.44	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245D

Deuteranopia (green-blind)

#00245A

Tritanopia (blue-blind)

#292435

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #330f5b;
/* rgb */ color: rgb(51, 15, 91);
/* oklch */ color: oklch(27.8% 0.125 299.4);

Tailwind

colors: {
  custom: {
    50: '#70528a',
    500: '#330f5b',
    950: '#000000',
  },
}

SCSS

$custom: #330f5b;
$custom-light: #70528a;
$custom-dark: #000000;

JSON

{
  "hex": "#330f5b",
  "rgb": {
    "r": 51,
    "g": 15,
    "b": 91
  },
  "hsl": {
    "h": 268.421,
    "s": 71.698,
    "l": 20.784
  },
  "oklch": {
    "l": 0.27761,
    "c": 0.12477,
    "h": 299.4
  },
  "luminance": 0.01801
}

Semantic roles & 50–950 ramp

primary

#330F5B

secondary

#669531

accent

#EE3999

background

#F7F4F8

surface

#EDE7F0

border

#C8C3CB

text

#08020C

muted

#7B787D

Preview Lab

Preview with #330F5B

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

Preview Lab → · Contrast checker → · Palette generator →