#331B50#331B50

#331B50 is a dark, moderate violet. Relative luminance 0.021; OKLCH L 28.5% C 0.094 H 301.6°. Best body text is #FFFFFF at 14.86:1 contrast (WCAG AA passes).

Color values

HEX	#331B50
RGB	rgb(51, 27, 80)
HSL	hsl(267, 50%, 21%)
HSV	hsv(267, 66%, 31%)
CMYK	cmyk(36.3%, 66.3%, 0%, 68.6%)
CIE-LAB	lab(15.83, 24.32, -28.24)
CIE-LCH	lch(15.83, 37.27, 310.73°)
OKLab	oklab(28.48% 0.0492 -0.0801)
OKLCH	oklch(28.48% 0.094 301.6)
XYZ	xyz(3.2048, 2.0668, 7.8180)
Luminance	0.0207 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B50 #38501B

analogous

#1B1D50 #331B50 #4D1B50

triadic

#331B50 #50331B #1B5033

tetradic

#331B50 #501B1D #38501B #1B504D

square

#331B50 #501B1D #38501B #1B504D

split-complementary

#331B50 #504D1B #1D501B

monochromatic

#0F0817 #160C22 #331B50 #502A7E #6D3AAC

Accessibility & contrast

On white

14.86

#331B50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#331B50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B50

14.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B50	#FFFFFF	#000000	##FFFFFF
##331B50	1.00	14.86	1.41	14.86
#FFFFFF	14.86	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002752

Deuteranopia (green-blind)

#0B274F

Tritanopia (blue-blind)

#2D2632

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #331b50;
/* rgb */ color: rgb(51, 27, 80);
/* oklch */ color: oklch(28.5% 0.094 301.6);

Tailwind

colors: {
  custom: {
    50: '#6d5881',
    500: '#331b50',
    950: '#000000',
  },
}

SCSS

$custom: #331b50;
$custom-light: #6d5881;
$custom-dark: #000000;

JSON

{
  "hex": "#331b50",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 80
  },
  "hsl": {
    "h": 267.17,
    "s": 49.533,
    "l": 20.98
  },
  "oklch": {
    "l": 0.28484,
    "c": 0.09395,
    "h": 301.6
  },
  "luminance": 0.02067
}

Semantic roles & 50–950 ramp

primary

#331B50

secondary

#678641

accent

#D94F9A

background

#F6F5F7

surface

#ECE9EE

border

#C7C5C9

text

#07030A

muted

#7A787C

Preview Lab

Preview with #331B50

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

Preview Lab → · Contrast checker → · Palette generator →