#310B33#310B33

#310B33 is a very dark, moderate purple. Relative luminance 0.011; OKLCH L 23.5% C 0.084 H 325.8°. Best body text is #FFFFFF at 17.13:1 contrast (WCAG AA passes).

Color values

HEX	#310B33
RGB	rgb(49, 11, 51)
HSL	hsl(297, 65%, 12%)
HSV	hsv(297, 78%, 20%)
CMYK	cmyk(3.9%, 78.4%, 0%, 80%)
CIE-LAB	lab(10.04, 25.41, -17.11)
CIE-LCH	lch(10.04, 30.64, 326.05°)
OKLab	oklab(23.54% 0.0697 -0.0475)
OKLCH	oklch(23.54% 0.084 325.8)
XYZ	xyz(1.9838, 1.1315, 3.2452)
Luminance	0.0113 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310B33 #0D330B

analogous

#1D0B33 #310B33 #330B21

triadic

#310B33 #33310B #0B3331

tetradic

#310B33 #331D0B #0D330B #0B2133

square

#310B33 #331D0B #0D330B #0B2133

split-complementary

#310B33 #21330B #0B331D

monochromatic

#180519 #180519 #310B33 #611665 #922198

Accessibility & contrast

On white

17.13

#310B33 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#310B33 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310B33

17.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310B33	#FFFFFF	#000000	##FFFFFF
##310B33	1.00	17.13	1.23	17.13
#FFFFFF	17.13	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#051934

Deuteranopia (green-blind)

#131D32

Tritanopia (blue-blind)

#32111D

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #310b33;
/* rgb */ color: rgb(49, 11, 51);
/* oklch */ color: oklch(23.5% 0.084 325.8);

Tailwind

colors: {
  custom: {
    50: '#6b4e6b',
    500: '#310b33',
    950: '#000000',
  },
}

SCSS

$custom: #310b33;
$custom-light: #6b4e6b;
$custom-dark: #000000;

JSON

{
  "hex": "#310b33",
  "rgb": {
    "r": 49,
    "g": 11,
    "b": 51
  },
  "hsl": {
    "h": 297,
    "s": 64.516,
    "l": 12.157
  },
  "oklch": {
    "l": 0.23542,
    "c": 0.08434,
    "h": 325.8
  },
  "luminance": 0.01131
}

Semantic roles & 50–950 ramp

primary

#310B33

secondary

#2E702A

accent

#E84049

background

#F6F4F6

surface

#EBE7EB

border

#C6C3C6

text

#070106

muted

#7A777A

Preview Lab

Preview with #310B33

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

Preview Lab → · Contrast checker → · Palette generator →