#311571#311571

#311571 is a dark, vivid violet. Relative luminance 0.024; OKLCH L 30.5% C 0.145 H 288.5°. Best body text is #FFFFFF at 14.22:1 contrast (WCAG AA passes).

Color values

HEX	#311571
RGB	rgb(49, 21, 113)
HSL	hsl(258, 69%, 26%)
HSV	hsv(258, 81%, 44%)
CMYK	cmyk(56.6%, 81.4%, 0%, 55.7%)
CIE-LAB	lab(17.37, 37.23, -47.65)
CIE-LCH	lch(17.37, 60.47, 308.00°)
OKLab	oklab(30.45% 0.0458 -0.1371)
OKLCH	oklch(30.45% 0.145 288.5)
XYZ	xyz(4.5145, 2.3813, 15.8413)
Luminance	0.0238 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311571 #557115

analogous

#152771 #311571 #5F1571

triadic

#311571 #713115 #157131

tetradic

#311571 #711527 #557115 #15715F

square

#311571 #711527 #557115 #15715F

split-complementary

#311571 #715F15 #277115

monochromatic

#0B051A #1B0B3D #311571 #471FA5 #5E29D7

Accessibility & contrast

On white

14.22

#311571 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#311571 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311571

14.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311571	#FFFFFF	#000000	##FFFFFF
##311571	1.00	14.22	1.48	14.22
#FFFFFF	14.22	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D74

Deuteranopia (green-blind)

#00286F

Tritanopia (blue-blind)

#172F43

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #311571;
/* rgb */ color: rgb(49, 21, 113);
/* oklch */ color: oklch(30.5% 0.145 288.5);

Tailwind

colors: {
  custom: {
    50: '#71569b',
    500: '#311571',
    950: '#000000',
  },
}

SCSS

$custom: #311571;
$custom-light: #71569b;
$custom-dark: #000000;

JSON

{
  "hex": "#311571",
  "rgb": {
    "r": 49,
    "g": 21,
    "b": 113
  },
  "hsl": {
    "h": 258.261,
    "s": 68.657,
    "l": 26.275
  },
  "oklch": {
    "l": 0.30453,
    "c": 0.14452,
    "h": 288.5
  },
  "luminance": 0.02382
}

Semantic roles & 50–950 ramp

primary

#311571

secondary

#86A73B

accent

#EB3CB6

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08030E

muted

#7B787E

Preview Lab

Preview with #311571

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

Preview Lab → · Contrast checker → · Palette generator →