#311555#311555

#311555 is a dark, moderate violet. Relative luminance 0.018; OKLCH L 27.7% C 0.110 H 299.1°. Best body text is #FFFFFF at 15.34:1 contrast (WCAG AA passes).

Color values

HEX	#311555
RGB	rgb(49, 21, 85)
HSL	hsl(266, 60%, 21%)
HSV	hsv(266, 75%, 33%)
CMYK	cmyk(42.4%, 75.3%, 0%, 66.7%)
CIE-LAB	lab(14.65, 28.89, -33.56)
CIE-LCH	lch(14.65, 44.28, 310.72°)
OKLab	oklab(27.7% 0.0532 -0.0957)
OKLCH	oklch(27.7% 0.11 299.1)
XYZ	xyz(3.1741, 1.8451, 8.7815)
Luminance	0.0185 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 7.09

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311555 #395515

analogous

#151955 #311555 #511555

triadic

#311555 #553115 #155531

tetradic

#311555 #551519 #395515 #155551

square

#311555 #551519 #395515 #155551

split-complementary

#311555 #555115 #195515

monochromatic

#0E0619 #150924 #311555 #4D2186 #6A2DB7

Accessibility & contrast

On white

15.34

#311555 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#311555 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311555

15.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311555	#FFFFFF	#000000	##FFFFFF
##311555	1.00	15.34	1.37	15.34
#FFFFFF	15.34	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002557

Deuteranopia (green-blind)

#002454

Tritanopia (blue-blind)

#292433

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #311555;
/* rgb */ color: rgb(49, 21, 85);
/* oklch */ color: oklch(27.7% 0.110 299.1);

Tailwind

colors: {
  custom: {
    50: '#6d5585',
    500: '#311555',
    950: '#000000',
  },
}

SCSS

$custom: #311555;
$custom-light: #6d5585;
$custom-dark: #000000;

JSON

{
  "hex": "#311555",
  "rgb": {
    "r": 49,
    "g": 21,
    "b": 85
  },
  "hsl": {
    "h": 266.25,
    "s": 60.377,
    "l": 20.784
  },
  "oklch": {
    "l": 0.27701,
    "c": 0.10956,
    "h": 299.1
  },
  "luminance": 0.01845
}

Semantic roles & 50–950 ramp

primary

#311555

secondary

#688D39

accent

#E4449E

background

#F6F5F8

surface

#ECE9EF

border

#C7C5CA

text

#07030B

muted

#7A787C

Preview Lab

Preview with #311555

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

Preview Lab → · Contrast checker → · Palette generator →