#310B40#310B40

#310B40 is a very dark, moderate purple. Relative luminance 0.013; OKLCH L 24.5% C 0.098 H 314.4°. Best body text is #FFFFFF at 16.77:1 contrast (WCAG AA passes).

Color values

HEX	#310B40
RGB	rgb(49, 11, 64)
HSL	hsl(283, 71%, 15%)
HSV	hsv(283, 83%, 25%)
CMYK	cmyk(23.4%, 82.8%, 0%, 74.9%)
CIE-LAB	lab(11.01, 28.44, -24.91)
CIE-LCH	lch(11.01, 37.80, 318.78°)
OKLab	oklab(24.55% 0.0689 -0.0703)
OKLCH	oklch(24.55% 0.098 314.4)
XYZ	xyz(2.3116, 1.2626, 4.9714)
Luminance	0.0126 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310B40 #1A400B

analogous

#170B40 #310B40 #400B35

triadic

#310B40 #40310B #0B4031

tetradic

#310B40 #40170B #1A400B #0B3540

square

#310B40 #40170B #1A400B #0B3540

split-complementary

#310B40 #35400B #0B4017

monochromatic

#14041A #14041A #310B40 #591474 #811DA8

Accessibility & contrast

On white

16.77

#310B40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#310B40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310B40

16.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310B40	#FFFFFF	#000000	##FFFFFF
##310B40	1.00	16.77	1.25	16.77
#FFFFFF	16.77	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B41

Deuteranopia (green-blind)

#081E3F

Tritanopia (blue-blind)

#301624

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #310b40;
/* rgb */ color: rgb(49, 11, 64);
/* oklch */ color: oklch(24.5% 0.098 314.4);

Tailwind

colors: {
  custom: {
    50: '#6c4e75',
    500: '#310b40',
    950: '#000000',
  },
}

SCSS

$custom: #310b40;
$custom-light: #6c4e75;
$custom-dark: #000000;

JSON

{
  "hex": "#310b40",
  "rgb": {
    "r": 49,
    "g": 11,
    "b": 64
  },
  "hsl": {
    "h": 283.019,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.24546,
    "c": 0.09839,
    "h": 314.4
  },
  "luminance": 0.01262
}

Semantic roles & 50–950 ramp

primary

#310B40

secondary

#417D2A

accent

#ED3A6D

background

#F6F4F7

surface

#EBE7ED

border

#C6C3C8

text

#070208

muted

#7A787B

Preview Lab

Preview with #310B40

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

Preview Lab → · Contrast checker → · Palette generator →