#310B38#310B38

#310B38 is a very dark, moderate purple. Relative luminance 0.012; OKLCH L 23.9% C 0.090 H 321.0°. Best body text is #FFFFFF at 17.00:1 contrast (WCAG AA passes).

Color values

HEX	#310B38
RGB	rgb(49, 11, 56)
HSL	hsl(291, 67%, 13%)
HSV	hsv(291, 80%, 22%)
CMYK	cmyk(12.5%, 80.4%, 0%, 78%)
CIE-LAB	lab(10.39, 26.54, -20.18)
CIE-LCH	lch(10.39, 33.34, 322.75°)
OKLab	oklab(23.91% 0.0697 -0.0564)
OKLCH	oklch(23.91% 0.09 321)
XYZ	xyz(2.1000, 1.1779, 3.8574)
Luminance	0.0118 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310B38 #12380B

analogous

#1A0B38 #310B38 #380B28

triadic

#310B38 #38310B #0B3831

tetradic

#310B38 #381A0B #12380B #0B2838

square

#310B38 #381A0B #12380B #0B2838

split-complementary

#310B38 #28380B #0B381A

monochromatic

#16051A #16051A #310B38 #5E156B #8B1F9E

Accessibility & contrast

On white

17.00

#310B38 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#310B38 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310B38

17.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310B38	#FFFFFF	#000000	##FFFFFF
##310B38	1.00	17.00	1.24	17.00
#FFFFFF	17.00	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	17.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A39

Deuteranopia (green-blind)

#101E37

Tritanopia (blue-blind)

#311320

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #310b38;
/* rgb */ color: rgb(49, 11, 56);
/* oklch */ color: oklch(23.9% 0.090 321.0);

Tailwind

colors: {
  custom: {
    50: '#6b4e6f',
    500: '#310b38',
    950: '#000000',
  },
}

SCSS

$custom: #310b38;
$custom-light: #6b4e6f;
$custom-dark: #000000;

JSON

{
  "hex": "#310b38",
  "rgb": {
    "r": 49,
    "g": 11,
    "b": 56
  },
  "hsl": {
    "h": 290.667,
    "s": 67.164,
    "l": 13.137
  },
  "oklch": {
    "l": 0.23909,
    "c": 0.08965,
    "h": 321
  },
  "luminance": 0.01178
}

Semantic roles & 50–950 ramp

primary

#310B38

secondary

#36752A

accent

#EA3E59

background

#F6F4F6

surface

#EBE7EC

border

#C6C3C7

text

#070207

muted

#7A787A

Preview Lab

Preview with #310B38

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

Preview Lab → · Contrast checker → · Palette generator →