#331B4F#331B4F

#331B4F is a dark, moderate violet. Relative luminance 0.021; OKLCH L 28.4% C 0.093 H 302.1°. Best body text is #FFFFFF at 14.89:1 contrast (WCAG AA passes).

Color values

HEX	#331B4F
RGB	rgb(51, 27, 79)
HSL	hsl(268, 49%, 21%)
HSV	hsv(268, 66%, 31%)
CMYK	cmyk(35.4%, 65.8%, 0%, 69%)
CIE-LAB	lab(15.76, 24.02, -27.68)
CIE-LCH	lch(15.76, 36.65, 310.95°)
OKLab	oklab(28.41% 0.0492 -0.0784)
OKLCH	oklch(28.41% 0.093 302.1)
XYZ	xyz(3.1681, 2.0522, 7.6248)
Luminance	0.0205 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B4F #374F1B

analogous

#1B1D4F #331B4F #4D1B4F

triadic

#331B4F #4F331B #1B4F33

tetradic

#331B4F #4F1B1D #374F1B #1B4F4D

square

#331B4F #4F1B1D #374F1B #1B4F4D

split-complementary

#331B4F #4F4D1B #1D4F1B

monochromatic

#0F0817 #160B21 #331B4F #502B7D #6E3AAA

Accessibility & contrast

On white

14.89

#331B4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#331B4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B4F

14.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B4F	#FFFFFF	#000000	##FFFFFF
##331B4F	1.00	14.89	1.41	14.89
#FFFFFF	14.89	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#022751

Deuteranopia (green-blind)

#0C274E

Tritanopia (blue-blind)

#2D2632

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #331b4f;
/* rgb */ color: rgb(51, 27, 79);
/* oklch */ color: oklch(28.4% 0.093 302.1);

Tailwind

colors: {
  custom: {
    50: '#6d5881',
    500: '#331b4f',
    950: '#000000',
  },
}

SCSS

$custom: #331b4f;
$custom-light: #6d5881;
$custom-dark: #000000;

JSON

{
  "hex": "#331b4f",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 79
  },
  "hsl": {
    "h": 267.692,
    "s": 49.057,
    "l": 20.784
  },
  "oklch": {
    "l": 0.28405,
    "c": 0.09257,
    "h": 302.1
  },
  "luminance": 0.02052
}

Semantic roles & 50–950 ramp

primary

#331B4F

secondary

#668541

accent

#D94F99

background

#F6F5F7

surface

#ECE9EE

border

#C7C5C9

text

#07030A

muted

#7A787C

Preview Lab

Preview with #331B4F

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

Preview Lab → · Contrast checker → · Palette generator →