#331B47#331B47

#331B47 is a dark, moderate violet. Relative luminance 0.019; OKLCH L 27.8% C 0.081 H 307.1°. Best body text is #FFFFFF at 15.12:1 contrast (WCAG AA passes).

Color values

HEX	#331B47
RGB	rgb(51, 27, 71)
HSL	hsl(273, 45%, 19%)
HSV	hsv(273, 62%, 28%)
CMYK	cmyk(28.2%, 62%, 0%, 72.2%)
CIE-LAB	lab(15.18, 21.73, -23.11)
CIE-LCH	lch(15.18, 31.72, 313.24°)
OKLab	oklab(27.8% 0.0491 -0.065)
OKLCH	oklch(27.8% 0.081 307.1)
XYZ	xyz(2.8943, 1.9426, 6.1825)
Luminance	0.0194 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B47 #2F471B

analogous

#1D1B47 #331B47 #471B45

triadic

#331B47 #47331B #1B4733

tetradic

#331B47 #471D1B #2F471B #1B4547

square

#331B47 #471D1B #2F471B #1B4547

split-complementary

#331B47 #45471B #1B471D

monochromatic

#100816 #130A1B #331B47 #532C73 #733DA0

Accessibility & contrast

On white

15.12

#331B47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#331B47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B47

15.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B47	#FFFFFF	#000000	##FFFFFF
##331B47	1.00	15.12	1.39	15.12
#FFFFFF	15.12	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C2548

Deuteranopia (green-blind)

#142646

Tritanopia (blue-blind)

#30232E

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #331b47;
/* rgb */ color: rgb(51, 27, 71);
/* oklch */ color: oklch(27.8% 0.081 307.1);

Tailwind

colors: {
  custom: {
    50: '#6c587a',
    500: '#331b47',
    950: '#000000',
  },
}

SCSS

$custom: #331b47;
$custom-light: #6c587a;
$custom-dark: #000000;

JSON

{
  "hex": "#331b47",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 71
  },
  "hsl": {
    "h": 272.727,
    "s": 44.898,
    "l": 19.216
  },
  "oklch": {
    "l": 0.27798,
    "c": 0.08147,
    "h": 307.1
  },
  "luminance": 0.01943
}

Semantic roles & 50–950 ramp

primary

#331B47

secondary

#5C7D41

accent

#D5538E

background

#F6F5F7

surface

#EBE9ED

border

#C6C5C8

text

#070309

muted

#7A787B

Preview Lab

Preview with #331B47

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

Preview Lab → · Contrast checker → · Palette generator →