#311057#311057

#311057 is a dark, moderate violet. Relative luminance 0.017; OKLCH L 27.2% C 0.119 H 299.4°. Best body text is #FFFFFF at 15.64:1 contrast (WCAG AA passes).

Color values

HEX	#311057
RGB	rgb(49, 16, 87)
HSL	hsl(268, 69%, 20%)
HSV	hsv(268, 82%, 34%)
CMYK	cmyk(43.7%, 81.6%, 0%, 65.9%)
CIE-LAB	lab(13.89, 32.12, -36.15)
CIE-LCH	lch(13.89, 48.36, 311.62°)
OKLab	oklab(27.22% 0.0582 -0.1033)
OKLCH	oklch(27.22% 0.119 299.4)
XYZ	xyz(3.1718, 1.7116, 9.1782)
Luminance	0.0171 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 3.46

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311057 #365710

analogous

#101357 #311057 #541057

triadic

#311057 #573110 #105731

tetradic

#311057 #571013 #365710 #105754

square

#311057 #571013 #365710 #105754

split-complementary

#311057 #575410 #135710

monochromatic

#0F051A #140623 #311057 #4E1A8B #6B23BE

Accessibility & contrast

On white

15.64

#311057 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#311057 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311057

15.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311057	#FFFFFF	#000000	##FFFFFF
##311057	1.00	15.64	1.34	15.64
#FFFFFF	15.64	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002359

Deuteranopia (green-blind)

#002356

Tritanopia (blue-blind)

#282333

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #311057;
/* rgb */ color: rgb(49, 16, 87);
/* oklch */ color: oklch(27.2% 0.119 299.4);

Tailwind

colors: {
  custom: {
    50: '#6e5287',
    500: '#311057',
    950: '#000000',
  },
}

SCSS

$custom: #311057;
$custom-light: #6e5287;
$custom-dark: #000000;

JSON

{
  "hex": "#311057",
  "rgb": {
    "r": 49,
    "g": 16,
    "b": 87
  },
  "hsl": {
    "h": 267.887,
    "s": 68.932,
    "l": 20.196
  },
  "oklch": {
    "l": 0.27221,
    "c": 0.1186,
    "h": 299.4
  },
  "luminance": 0.01712
}

Semantic roles & 50–950 ramp

primary

#311057

secondary

#659032

accent

#EC3C9A

background

#F6F4F8

surface

#ECE7EF

border

#C7C3CA

text

#07020B

muted

#7A787C

Preview Lab

Preview with #311057

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

Preview Lab → · Contrast checker → · Palette generator →