#311556#311556

#311556 is a dark, moderate violet. Relative luminance 0.019; OKLCH L 27.8% C 0.111 H 298.6°. Best body text is #FFFFFF at 15.30:1 contrast (WCAG AA passes).

Color values

HEX	#311556
RGB	rgb(49, 21, 86)
HSL	hsl(266, 61%, 21%)
HSV	hsv(266, 76%, 34%)
CMYK	cmyk(43%, 75.6%, 0%, 66.3%)
CIE-LAB	lab(14.74, 29.18, -34.09)
CIE-LCH	lch(14.74, 44.88, 310.56°)
OKLab	oklab(27.79% 0.0531 -0.0973)
OKLCH	oklch(27.79% 0.111 298.6)
XYZ	xyz(3.2141, 1.8611, 8.9922)
Luminance	0.0186 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 6.97

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311556 #3A5615

analogous

#151956 #311556 #511556

triadic

#311556 #563115 #155631

tetradic

#311556 #561519 #3A5615 #155651

square

#311556 #561519 #3A5615 #155651

split-complementary

#311556 #565115 #195615

monochromatic

#0E0619 #150925 #311556 #4D2187 #692DB8

Accessibility & contrast

On white

15.30

#311556 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#311556 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311556

15.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311556	#FFFFFF	#000000	##FFFFFF
##311556	1.00	15.30	1.37	15.30
#FFFFFF	15.30	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002558

Deuteranopia (green-blind)

#002455

Tritanopia (blue-blind)

#282533

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #311556;
/* rgb */ color: rgb(49, 21, 86);
/* oklch */ color: oklch(27.8% 0.111 298.6);

Tailwind

colors: {
  custom: {
    50: '#6d5586',
    500: '#311556',
    950: '#000000',
  },
}

SCSS

$custom: #311556;
$custom-light: #6d5586;
$custom-dark: #000000;

JSON

{
  "hex": "#311556",
  "rgb": {
    "r": 49,
    "g": 21,
    "b": 86
  },
  "hsl": {
    "h": 265.846,
    "s": 60.748,
    "l": 20.98
  },
  "oklch": {
    "l": 0.27791,
    "c": 0.11084,
    "h": 298.6
  },
  "luminance": 0.01861
}

Semantic roles & 50–950 ramp

primary

#311556

secondary

#698E39

accent

#E4449F

background

#F6F5F8

surface

#ECE9EF

border

#C7C5CA

text

#07030B

muted

#7A787C

Preview Lab

Preview with #311556

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

Preview Lab → · Contrast checker → · Palette generator →