#310B37#310B37

#310B37 is a very dark, moderate purple. Relative luminance 0.012; OKLCH L 23.8% C 0.089 H 321.9°. Best body text is #FFFFFF at 17.02:1 contrast (WCAG AA passes).

Color values

HEX	#310B37
RGB	rgb(49, 11, 55)
HSL	hsl(292, 67%, 13%)
HSV	hsv(292, 80%, 22%)
CMYK	cmyk(10.9%, 80%, 0%, 78.4%)
CIE-LAB	lab(10.32, 26.31, -19.57)
CIE-LCH	lch(10.32, 32.79, 323.35°)
OKLab	oklab(23.83% 0.0697 -0.0546)
OKLCH	oklch(23.83% 0.089 321.9)
XYZ	xyz(2.0758, 1.1683, 3.7298)
Luminance	0.0117 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310B37 #11370B

analogous

#1B0B37 #310B37 #370B27

triadic

#310B37 #37310B #0B3731

tetradic

#310B37 #371B0B #11370B #0B2737

square

#310B37 #371B0B #11370B #0B2737

split-complementary

#310B37 #27370B #0B371B

monochromatic

#17051A #17051A #310B37 #5E156A #8C1F9D

Accessibility & contrast

On white

17.02

#310B37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#310B37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310B37

17.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310B37	#FFFFFF	#000000	##FFFFFF
##310B37	1.00	17.02	1.23	17.02
#FFFFFF	17.02	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#011938

Deuteranopia (green-blind)

#111E36

Tritanopia (blue-blind)

#32131F

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #310b37;
/* rgb */ color: rgb(49, 11, 55);
/* oklch */ color: oklch(23.8% 0.089 321.9);

Tailwind

colors: {
  custom: {
    50: '#6b4e6e',
    500: '#310b37',
    950: '#000000',
  },
}

SCSS

$custom: #310b37;
$custom-light: #6b4e6e;
$custom-dark: #000000;

JSON

{
  "hex": "#310b37",
  "rgb": {
    "r": 49,
    "g": 11,
    "b": 55
  },
  "hsl": {
    "h": 291.818,
    "s": 66.667,
    "l": 12.941
  },
  "oklch": {
    "l": 0.23833,
    "c": 0.08857,
    "h": 321.9
  },
  "luminance": 0.01168
}

Semantic roles & 50–950 ramp

primary

#310B37

secondary

#34742A

accent

#EA3E56

background

#F6F4F6

surface

#EBE7EC

border

#C6C3C7

text

#070207

muted

#7A787A

Preview Lab

Preview with #310B37

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

Preview Lab → · Contrast checker → · Palette generator →