#331558#331558

#331558 is a dark, moderate violet. Relative luminance 0.019; OKLCH L 28.2% C 0.114 H 299.4°. Best body text is #FFFFFF at 15.12:1 contrast (WCAG AA passes).

Color values

HEX	#331558
RGB	rgb(51, 21, 88)
HSL	hsl(267, 61%, 21%)
HSV	hsv(267, 76%, 35%)
CMYK	cmyk(42%, 76.1%, 0%, 65.5%)
CIE-LAB	lab(15.19, 30.20, -34.70)
CIE-LCH	lch(15.19, 46.00, 311.04°)
OKLab	oklab(28.23% 0.0559 -0.099)
OKLCH	oklch(28.23% 0.114 299.4)
XYZ	xyz(3.3944, 1.9447, 9.4272)
Luminance	0.0194 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 4.23

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331558 #3A5815

analogous

#151958 #331558 #551558

triadic

#331558 #583315 #155833

tetradic

#331558 #581519 #3A5815 #155855

square

#331558 #581519 #3A5815 #155855

split-complementary

#331558 #585515 #195815

monochromatic

#0E0619 #160927 #331558 #502189 #6C2DBB

Accessibility & contrast

On white

15.12

#331558 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#331558 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331558

15.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331558	#FFFFFF	#000000	##FFFFFF
##331558	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)

#00265A

Deuteranopia (green-blind)

#002657

Tritanopia (blue-blind)

#2A2535

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #331558;
/* rgb */ color: rgb(51, 21, 88);
/* oklch */ color: oklch(28.2% 0.114 299.4);

Tailwind

colors: {
  custom: {
    50: '#6f5588',
    500: '#331558',
    950: '#000000',
  },
}

SCSS

$custom: #331558;
$custom-light: #6f5588;
$custom-dark: #000000;

JSON

{
  "hex": "#331558",
  "rgb": {
    "r": 51,
    "g": 21,
    "b": 88
  },
  "hsl": {
    "h": 266.866,
    "s": 61.468,
    "l": 21.373
  },
  "oklch": {
    "l": 0.28231,
    "c": 0.1137,
    "h": 299.4
  },
  "luminance": 0.01945
}

Semantic roles & 50–950 ramp

primary

#331558

secondary

#699039

accent

#E5439C

background

#F6F5F8

surface

#ECE9F0

border

#C7C5CB

text

#08030B

muted

#7B787C

Preview Lab

Preview with #331558

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

Preview Lab → · Contrast checker → · Palette generator →