#331057#331057

#331057 is a dark, moderate violet. Relative luminance 0.018; OKLCH L 27.5% C 0.119 H 301.1°. Best body text is #FFFFFF at 15.53:1 contrast (WCAG AA passes).

Color values

HEX	#331057
RGB	rgb(51, 16, 87)
HSL	hsl(270, 69%, 20%)
HSV	hsv(270, 82%, 34%)
CMYK	cmyk(41.4%, 81.6%, 0%, 65.9%)
CIE-LAB	lab(14.19, 32.51, -35.66)
CIE-LCH	lch(14.19, 48.25, 312.35°)
OKLab	oklab(27.49% 0.0615 -0.1018)
OKLCH	oklch(27.49% 0.119 301.1)
XYZ	xyz(3.2704, 1.7625, 9.1829)
Luminance	0.0176 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 3.87

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331057 #345710

analogous

#101157 #331057 #561057

triadic

#331057 #573310 #105733

tetradic

#331057 #571011 #345710 #105756

square

#331057 #571011 #345710 #105756

split-complementary

#331057 #575610 #115710

monochromatic

#0F051A #150623 #331057 #511A8B #7023BE

Accessibility & contrast

On white

15.53

#331057 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#331057 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331057

15.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331057	#FFFFFF	#000000	##FFFFFF
##331057	1.00	15.53	1.35	15.53
#FFFFFF	15.53	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002459

Deuteranopia (green-blind)

#002456

Tritanopia (blue-blind)

#2B2233

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #331057;
/* rgb */ color: rgb(51, 16, 87);
/* oklch */ color: oklch(27.5% 0.119 301.1);

Tailwind

colors: {
  custom: {
    50: '#6f5287',
    500: '#331057',
    950: '#000000',
  },
}

SCSS

$custom: #331057;
$custom-light: #6f5287;
$custom-dark: #000000;

JSON

{
  "hex": "#331057",
  "rgb": {
    "r": 51,
    "g": 16,
    "b": 87
  },
  "hsl": {
    "h": 269.577,
    "s": 68.932,
    "l": 20.196
  },
  "oklch": {
    "l": 0.27491,
    "c": 0.11895,
    "h": 301.1
  },
  "luminance": 0.01763
}

Semantic roles & 50–950 ramp

primary

#331057

secondary

#629032

accent

#EC3C95

background

#F6F4F8

surface

#ECE7EF

border

#C7C3CA

text

#08020B

muted

#7B787C

Preview Lab

Preview with #331057

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

Preview Lab → · Contrast checker → · Palette generator →