#331B43#331B43

#331B43 is a dark, moderate violet. Relative luminance 0.019; OKLCH L 27.5% C 0.076 H 310.0°. Best body text is #FFFFFF at 15.23:1 contrast (WCAG AA passes).

Color values

HEX	#331B43
RGB	rgb(51, 27, 67)
HSL	hsl(276, 43%, 18%)
HSV	hsv(276, 60%, 26%)
CMYK	cmyk(23.9%, 59.7%, 0%, 73.7%)
CIE-LAB	lab(14.92, 20.61, -20.76)
CIE-LCH	lch(14.92, 29.25, 314.80°)
OKLab	oklab(27.51% 0.0488 -0.0581)
OKLCH	oklch(27.51% 0.076 310)
XYZ	xyz(2.7701, 1.8930, 5.5286)
Luminance	0.0189 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B43 #2B431B

analogous

#1F1B43 #331B43 #431B3F

triadic

#331B43 #43331B #1B4333

tetradic

#331B43 #431F1B #2B431B #1B3F43

square

#331B43 #431F1B #2B431B #1B3F43

split-complementary

#331B43 #3F431B #1B431F

monochromatic

#110916 #120917 #331B43 #542D6F #753E9A

Accessibility & contrast

On white

15.23

#331B43 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#331B43 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B43

15.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B43	#FFFFFF	#000000	##FFFFFF
##331B43	1.00	15.23	1.38	15.23
#FFFFFF	15.23	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#102444

Deuteranopia (green-blind)

#172642

Tritanopia (blue-blind)

#31222C

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #331b43;
/* rgb */ color: rgb(51, 27, 67);
/* oklch */ color: oklch(27.5% 0.076 310.0);

Tailwind

colors: {
  custom: {
    50: '#6c5877',
    500: '#331b43',
    950: '#000000',
  },
}

SCSS

$custom: #331b43;
$custom-light: #6c5877;
$custom-dark: #000000;

JSON

{
  "hex": "#331b43",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 67
  },
  "hsl": {
    "h": 276,
    "s": 42.553,
    "l": 18.431
  },
  "oklch": {
    "l": 0.27514,
    "c": 0.07592,
    "h": 310
  },
  "luminance": 0.01893
}

Semantic roles & 50–950 ramp

primary

#331B43

secondary

#577941

accent

#D25587

background

#F6F5F7

surface

#EBE9ED

border

#C6C5C8

text

#070308

muted

#7A787B

Preview Lab

Preview with #331B43

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

Preview Lab → · Contrast checker → · Palette generator →