#311C70#311C70

#311C70 is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.3% C 0.135 H 287.2°. Best body text is #FFFFFF at 13.72:1 contrast (WCAG AA passes).

Color values

HEX	#311C70
RGB	rgb(49, 28, 112)
HSL	hsl(255, 60%, 27%)
HSV	hsv(255, 75%, 44%)
CMYK	cmyk(56.3%, 75%, 0%, 56.1%)
CIE-LAB	lab(18.60, 33.16, -44.99)
CIE-LCH	lch(18.60, 55.89, 306.39°)
OKLab	oklab(31.28% 0.0401 -0.1293)
OKLCH	oklch(31.28% 0.135 287.2)
XYZ	xyz(4.6056, 2.6531, 15.5955)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311C70 #5B701C

analogous

#1C3170 #311C70 #5B1C70

triadic

#311C70 #70311C #1C7031

tetradic

#311C70 #701C31 #5B701C #1C705B

square

#311C70 #701C31 #5B701C #1C705B

split-complementary

#311C70 #705B1C #31701C

monochromatic

#0B0618 #1C103F #311C70 #4628A1 #5E39CD

Accessibility & contrast

On white

13.72

#311C70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#311C70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311C70

13.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311C70	#FFFFFF	#000000	##FFFFFF
##311C70	1.00	13.72	1.53	13.72
#FFFFFF	13.72	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F72

Deuteranopia (green-blind)

#002B6E

Tritanopia (blue-blind)

#173244

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #311c70;
/* rgb */ color: rgb(49, 28, 112);
/* oklch */ color: oklch(31.3% 0.135 287.2);

Tailwind

colors: {
  custom: {
    50: '#715a9a',
    500: '#311c70',
    950: '#000000',
  },
}

SCSS

$custom: #311c70;
$custom-light: #715a9a;
$custom-dark: #000000;

JSON

{
  "hex": "#311c70",
  "rgb": {
    "r": 49,
    "g": 28,
    "b": 112
  },
  "hsl": {
    "h": 255,
    "s": 60,
    "l": 27.451
  },
  "oklch": {
    "l": 0.31284,
    "c": 0.13543,
    "h": 287.2
  },
  "luminance": 0.02653
}

Semantic roles & 50–950 ramp

primary

#311C70

secondary

#8CA543

accent

#E345BC

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #311C70

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

Preview Lab → · Contrast checker → · Palette generator →