#310D40#310D40

#310D40 is a very dark, moderate purple. Relative luminance 0.013; OKLCH L 24.8% C 0.096 H 314.1°. Best body text is #FFFFFF at 16.64:1 contrast (WCAG AA passes).

Color values

HEX	#310D40
RGB	rgb(49, 13, 64)
HSL	hsl(282, 66%, 15%)
HSV	hsv(282, 80%, 25%)
CMYK	cmyk(23.4%, 79.7%, 0%, 74.9%)
CIE-LAB	lab(11.35, 27.47, -24.36)
CIE-LCH	lch(11.35, 36.71, 318.43°)
OKLab	oklab(24.79% 0.0665 -0.0687)
OKLCH	oklch(24.79% 0.096 314.1)
XYZ	xyz(2.3358, 1.3111, 4.9795)
Luminance	0.0131 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310D40 #1C400D

analogous

#170D40 #310D40 #400D35

triadic

#310D40 #40310D #0D4031

tetradic

#310D40 #40170D #1C400D #0D3540

square

#310D40 #40170D #1C400D #0D3540

split-complementary

#310D40 #35400D #0D4017

monochromatic

#130519 #130519 #310D40 #581773 #7F22A6

Accessibility & contrast

On white

16.64

#310D40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#310D40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310D40

16.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310D40	#FFFFFF	#000000	##FFFFFF
##310D40	1.00	16.64	1.26	16.64
#FFFFFF	16.64	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C41

Deuteranopia (green-blind)

#0A1F3F

Tritanopia (blue-blind)

#301825

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #310d40;
/* rgb */ color: rgb(49, 13, 64);
/* oklch */ color: oklch(24.8% 0.096 314.1);

Tailwind

colors: {
  custom: {
    50: '#6b4f75',
    500: '#310d40',
    950: '#000000',
  },
}

SCSS

$custom: #310d40;
$custom-light: #6b4f75;
$custom-dark: #000000;

JSON

{
  "hex": "#310d40",
  "rgb": {
    "r": 49,
    "g": 13,
    "b": 64
  },
  "hsl": {
    "h": 282.353,
    "s": 66.234,
    "l": 15.098
  },
  "oklch": {
    "l": 0.2479,
    "c": 0.09556,
    "h": 314.1
  },
  "luminance": 0.01311
}

Semantic roles & 50–950 ramp

primary

#310D40

secondary

#447C2D

accent

#E93F71

background

#F6F4F7

surface

#EBE7ED

border

#C6C3C8

text

#070208

muted

#7A787B

Preview Lab

Preview with #310D40

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

Preview Lab → · Contrast checker → · Palette generator →