#331B53#331B53

#331B53 is a dark, moderate violet. Relative luminance 0.021; OKLCH L 28.7% C 0.098 H 300.0°. Best body text is #FFFFFF at 14.76:1 contrast (WCAG AA passes).

Color values

HEX	#331B53
RGB	rgb(51, 27, 83)
HSL	hsl(266, 51%, 22%)
HSV	hsv(266, 67%, 33%)
CMYK	cmyk(38.6%, 67.5%, 0%, 67.5%)
CIE-LAB	lab(16.07, 25.20, -29.91)
CIE-LCH	lch(16.07, 39.11, 310.12°)
OKLab	oklab(28.73% 0.049 -0.0849)
OKLCH	oklch(28.73% 0.098 300)
XYZ	xyz(3.3181, 2.1122, 8.4148)
Luminance	0.0211 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B53 #3B531B

analogous

#1B1F53 #331B53 #4F1B53

triadic

#331B53 #53331B #1B5333

tetradic

#331B53 #531B1F #3B531B #1B534F

square

#331B53 #531B1F #3B531B #1B534F

split-complementary

#331B53 #534F1B #1F531B

monochromatic

#0E0817 #170C25 #331B53 #4F2A81 #6C39AF

Accessibility & contrast

On white

14.76

#331B53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#331B53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B53

14.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B53	#FFFFFF	#000000	##FFFFFF
##331B53	1.00	14.76	1.42	14.76
#FFFFFF	14.76	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002855

Deuteranopia (green-blind)

#062752

Tritanopia (blue-blind)

#2C2734

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #331b53;
/* rgb */ color: rgb(51, 27, 83);
/* oklch */ color: oklch(28.7% 0.098 300.0);

Tailwind

colors: {
  custom: {
    50: '#6e5984',
    500: '#331b53',
    950: '#000000',
  },
}

SCSS

$custom: #331b53;
$custom-light: #6e5984;
$custom-dark: #000000;

JSON

{
  "hex": "#331b53",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 83
  },
  "hsl": {
    "h": 265.714,
    "s": 50.909,
    "l": 21.569
  },
  "oklch": {
    "l": 0.28726,
    "c": 0.09807,
    "h": 300
  },
  "luminance": 0.02112
}

Semantic roles & 50–950 ramp

primary

#331B53

secondary

#6A8941

accent

#DA4D9E

background

#F6F5F8

surface

#ECE9EF

border

#C7C5CA

text

#07030B

muted

#7A787C

Preview Lab

Preview with #331B53

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

Preview Lab → · Contrast checker → · Palette generator →