#330B56#330B56

#330B56 is a dark, vivid violet. Relative luminance 0.016; OKLCH L 26.9% C 0.123 H 302.6°. Best body text is #FFFFFF at 15.87:1 contrast (WCAG AA passes).

Color values

HEX	#330B56
RGB	rgb(51, 11, 86)
HSL	hsl(272, 77%, 19%)
HSV	hsv(272, 87%, 34%)
CMYK	cmyk(40.7%, 87.2%, 0%, 66.3%)
CIE-LAB	lab(13.32, 34.46, -36.40)
CIE-LCH	lch(13.32, 50.12, 313.44°)
OKLab	oklab(26.86% 0.0665 -0.1039)
OKLCH	oklch(26.86% 0.123 302.6)
XYZ	xyz(3.1642, 1.6150, 8.9473)
Luminance	0.0162 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#330B56 #2E560B

analogous

#0E0B56 #330B56 #560B54

triadic

#330B56 #56330B #0B5633

tetradic

#330B56 #560E0B #2E560B #0B5456

square

#330B56 #560E0B #2E560B #0B5456

split-complementary

#330B56 #54560B #0B560E

monochromatic

#10031B #130420 #330B56 #53128C #7319C3

Accessibility & contrast

On white

15.87

#330B56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#330B56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #330B56

15.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##330B56	#FFFFFF	#000000	##FFFFFF
##330B56	1.00	15.87	1.32	15.87
#FFFFFF	15.87	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002258

Deuteranopia (green-blind)

#002255

Tritanopia (blue-blind)

#2C2031

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #330b56;
/* rgb */ color: rgb(51, 11, 86);
/* oklch */ color: oklch(26.9% 0.123 302.6);

Tailwind

colors: {
  custom: {
    50: '#6f5086',
    500: '#330b56',
    950: '#000000',
  },
}

SCSS

$custom: #330b56;
$custom-light: #6f5086;
$custom-dark: #000000;

JSON

{
  "hex": "#330b56",
  "rgb": {
    "r": 51,
    "g": 11,
    "b": 86
  },
  "hsl": {
    "h": 272,
    "s": 77.32,
    "l": 19.02
  },
  "oklch": {
    "l": 0.26856,
    "c": 0.12337,
    "h": 302.6
  },
  "luminance": 0.01615
}

Semantic roles & 50–950 ramp

primary

#330B56

secondary

#5B912B

accent

#F4348E

background

#F6F4F8

surface

#ECE7EF

border

#C7C3CA

text

#08020B

muted

#7B787C

Preview Lab

Preview with #330B56

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

Preview Lab → · Contrast checker → · Palette generator →