#310D4B#310D4B

#310D4B is a dark, moderate violet. Relative luminance 0.014; OKLCH L 25.7% C 0.108 H 306.6°. Best body text is #FFFFFF at 16.28:1 contrast (WCAG AA passes).

Color values

HEX	#310D4B
RGB	rgb(49, 13, 75)
HSL	hsl(275, 70%, 17%)
HSV	hsv(275, 83%, 29%)
CMYK	cmyk(34.7%, 82.7%, 0%, 70.6%)
CIE-LAB	lab(12.28, 30.30, -30.57)
CIE-LCH	lch(12.28, 43.04, 314.75°)
OKLab	oklab(25.74% 0.0645 -0.0869)
OKLCH	oklch(25.74% 0.108 306.6)
XYZ	xyz(2.6803, 1.4488, 6.7937)
Luminance	0.0145 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310D4B #274B0D

analogous

#120D4B #310D4B #4B0D46

triadic

#310D4B #4B310D #0D4B31

tetradic

#310D4B #4B120D #274B0D #0D464B

square

#310D4B #4B120D #274B0D #0D464B

split-complementary

#310D4B #464B0D #0D4B12

monochromatic

#11051A #11051A #310D4B #53167F #751FB3

Accessibility & contrast

On white

16.28

#310D4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#310D4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310D4B

16.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310D4B	#FFFFFF	#000000	##FFFFFF
##310D4B	1.00	16.28	1.29	16.28
#FFFFFF	16.28	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F4D

Deuteranopia (green-blind)

#00204A

Tritanopia (blue-blind)

#2C1C2B

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #310d4b;
/* rgb */ color: rgb(49, 13, 75);
/* oklch */ color: oklch(25.7% 0.108 306.6);

Tailwind

colors: {
  custom: {
    50: '#6c507e',
    500: '#310d4b',
    950: '#000000',
  },
}

SCSS

$custom: #310d4b;
$custom-light: #6c507e;
$custom-dark: #000000;

JSON

{
  "hex": "#310d4b",
  "rgb": {
    "r": 49,
    "g": 13,
    "b": 75
  },
  "hsl": {
    "h": 274.839,
    "s": 70.455,
    "l": 17.255
  },
  "oklch": {
    "l": 0.25739,
    "c": 0.1082,
    "h": 306.6
  },
  "luminance": 0.01449
}

Semantic roles & 50–950 ramp

primary

#310D4B

secondary

#53862E

accent

#ED3B85

background

#F6F4F7

surface

#ECE7EE

border

#C7C3C9

text

#07020A

muted

#7A787C

Preview Lab

Preview with #310D4B

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

Preview Lab → · Contrast checker → · Palette generator →