#310B56#310B56

#310B56 is a dark, vivid violet. Relative luminance 0.016; OKLCH L 26.6% C 0.123 H 300.9°. Best body text is #FFFFFF at 16.00:1 contrast (WCAG AA passes).

Color values

HEX	#310B56
RGB	rgb(49, 11, 86)
HSL	hsl(270, 77%, 19%)
HSV	hsv(270, 87%, 34%)
CMYK	cmyk(43%, 87.2%, 0%, 66.3%)
CIE-LAB	lab(13.01, 34.11, -36.92)
CIE-LCH	lch(13.01, 50.27, 312.74°)
OKLab	oklab(26.57% 0.0631 -0.1055)
OKLCH	oklch(26.57% 0.123 300.9)
XYZ	xyz(3.0656, 1.5642, 8.9427)
Luminance	0.0156 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310B56 #30560B

analogous

#0C0B56 #310B56 #560B56

triadic

#310B56 #56310B #0B5631

tetradic

#310B56 #560C0B #30560B #0B5656

square

#310B56 #560C0B #30560B #0B5656

split-complementary

#310B56 #56560B #0B560C

monochromatic

#0F031B #120420 #310B56 #50128C #6F19C3

Accessibility & contrast

On white

16.00

#310B56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#310B56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310B56

16.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310B56	#FFFFFF	#000000	##FFFFFF
##310B56	1.00	16.00	1.31	16.00
#FFFFFF	16.00	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002158

Deuteranopia (green-blind)

#002155

Tritanopia (blue-blind)

#282031

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #310b56;
/* rgb */ color: rgb(49, 11, 86);
/* oklch */ color: oklch(26.6% 0.123 300.9);

Tailwind

colors: {
  custom: {
    50: '#6e5086',
    500: '#310b56',
    950: '#000000',
  },
}

SCSS

$custom: #310b56;
$custom-light: #6e5086;
$custom-dark: #000000;

JSON

{
  "hex": "#310b56",
  "rgb": {
    "r": 49,
    "g": 11,
    "b": 86
  },
  "hsl": {
    "h": 270.4,
    "s": 77.32,
    "l": 19.02
  },
  "oklch": {
    "l": 0.26573,
    "c": 0.12297,
    "h": 300.9
  },
  "luminance": 0.01564
}

Semantic roles & 50–950 ramp

primary

#310B56

secondary

#5E912B

accent

#F43493

background

#F6F4F8

surface

#ECE7EF

border

#C7C3CA

text

#08020B

muted

#7B787C

Preview Lab

Preview with #310B56

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

Preview Lab → · Contrast checker → · Palette generator →