#310D3B#310D3B

#310D3B is a very dark, moderate purple. Relative luminance 0.013; OKLCH L 24.4% C 0.090 H 318.1°. Best body text is #FFFFFF at 16.78:1 contrast (WCAG AA passes).

Color values

HEX	#310D3B
RGB	rgb(49, 13, 59)
HSL	hsl(287, 64%, 14%)
HSV	hsv(287, 78%, 23%)
CMYK	cmyk(16.9%, 78%, 0%, 76.9%)
CIE-LAB	lab(10.97, 26.25, -21.42)
CIE-LCH	lch(10.97, 33.87, 320.79°)
OKLab	oklab(24.39% 0.0669 -0.06)
OKLCH	oklch(24.39% 0.09 318.1)
XYZ	xyz(2.1999, 1.2567, 4.2635)
Luminance	0.0126 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310D3B #173B0D

analogous

#1A0D3B #310D3B #3B0D2E

triadic

#310D3B #3B310D #0D3B31

tetradic

#310D3B #3B1A0D #173B0D #0D2E3B

square

#310D3B #3B1A0D #173B0D #0D2E3B

split-complementary

#310D3B #2E3B0D #0D3B1A

monochromatic

#150619 #150619 #310D3B #5B186D #84239F

Accessibility & contrast

On white

16.78

#310D3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#310D3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310D3B

16.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310D3B	#FFFFFF	#000000	##FFFFFF
##310D3B	1.00	16.78	1.25	16.78
#FFFFFF	16.78	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B3C

Deuteranopia (green-blind)

#0F1F3A

Tritanopia (blue-blind)

#311622

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #310d3b;
/* rgb */ color: rgb(49, 13, 59);
/* oklch */ color: oklch(24.4% 0.090 318.1);

Tailwind

colors: {
  custom: {
    50: '#6b4f71',
    500: '#310d3b',
    950: '#000000',
  },
}

SCSS

$custom: #310d3b;
$custom-light: #6b4f71;
$custom-dark: #000000;

JSON

{
  "hex": "#310d3b",
  "rgb": {
    "r": 49,
    "g": 13,
    "b": 59
  },
  "hsl": {
    "h": 286.957,
    "s": 63.889,
    "l": 14.118
  },
  "oklch": {
    "l": 0.24392,
    "c": 0.08988,
    "h": 318.1
  },
  "luminance": 0.01257
}

Semantic roles & 50–950 ramp

primary

#310D3B

secondary

#3D772D

accent

#E74165

background

#F6F4F6

surface

#EBE7EC

border

#C6C3C7

text

#070207

muted

#7A787A

Preview Lab

Preview with #310D3B

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

Preview Lab → · Contrast checker → · Palette generator →