#310B39#310B39

#310B39 is a very dark, moderate purple. Relative luminance 0.012; OKLCH L 24.0% C 0.091 H 320.1°. Best body text is #FFFFFF at 16.97:1 contrast (WCAG AA passes).

Color values

HEX	#310B39
RGB	rgb(49, 11, 57)
HSL	hsl(290, 68%, 13%)
HSV	hsv(290, 81%, 22%)
CMYK	cmyk(14%, 80.7%, 0%, 77.6%)
CIE-LAB	lab(10.47, 26.77, -20.78)
CIE-LCH	lch(10.47, 33.89, 322.17°)
OKLab	oklab(23.99% 0.0696 -0.0582)
OKLCH	oklch(23.99% 0.091 320.1)
XYZ	xyz(2.1247, 1.1878, 3.9875)
Luminance	0.0119 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310B39 #13390B

analogous

#1A0B39 #310B39 #390B2A

triadic

#310B39 #39310B #0B3931

tetradic

#310B39 #391A0B #13390B #0B2A39

square

#310B39 #391A0B #13390B #0B2A39

split-complementary

#310B39 #2A390B #0B391A

monochromatic

#16051A #16051A #310B39 #5D156C #891FA0

Accessibility & contrast

On white

16.97

#310B39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#310B39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310B39

16.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310B39	#FFFFFF	#000000	##FFFFFF
##310B39	1.00	16.97	1.24	16.97
#FFFFFF	16.97	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A3A

Deuteranopia (green-blind)

#0F1E38

Tritanopia (blue-blind)

#311321

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #310b39;
/* rgb */ color: rgb(49, 11, 57);
/* oklch */ color: oklch(24.0% 0.091 320.1);

Tailwind

colors: {
  custom: {
    50: '#6b4e6f',
    500: '#310b39',
    950: '#000000',
  },
}

SCSS

$custom: #310b39;
$custom-light: #6b4e6f;
$custom-dark: #000000;

JSON

{
  "hex": "#310b39",
  "rgb": {
    "r": 49,
    "g": 11,
    "b": 57
  },
  "hsl": {
    "h": 289.565,
    "s": 67.647,
    "l": 13.333
  },
  "oklch": {
    "l": 0.23985,
    "c": 0.09072,
    "h": 320.1
  },
  "luminance": 0.01188
}

Semantic roles & 50–950 ramp

primary

#310B39

secondary

#37762A

accent

#EB3D5B

background

#F6F4F6

surface

#EBE7EC

border

#C6C3C7

text

#070207

muted

#7A787A

Preview Lab

Preview with #310B39

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

Preview Lab → · Contrast checker → · Palette generator →