#310B4B#310B4B

#310B4B is a dark, moderate violet. Relative luminance 0.014; OKLCH L 25.5% C 0.111 H 307.0°. Best body text is #FFFFFF at 16.41:1 contrast (WCAG AA passes).

Color values

HEX	#310B4B
RGB	rgb(49, 11, 75)
HSL	hsl(276, 74%, 17%)
HSV	hsv(276, 85%, 29%)
CMYK	cmyk(34.7%, 85.3%, 0%, 70.6%)
CIE-LAB	lab(11.96, 31.21, -31.09)
CIE-LCH	lch(11.96, 44.05, 315.12°)
OKLab	oklab(25.52% 0.0665 -0.0884)
OKLCH	oklch(25.52% 0.111 307)
XYZ	xyz(2.6560, 1.4003, 6.7856)
Luminance	0.0140 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310B4B #254B0B

analogous

#110B4B #310B4B #4B0B45

triadic

#310B4B #4B310B #0B4B31

tetradic

#310B4B #4B110B #254B0B #0B454B

square

#310B4B #4B110B #254B0B #0B454B

split-complementary

#310B4B #454B0B #0B4B11

monochromatic

#11041B #11041B #310B4B #541380 #771BB6

Accessibility & contrast

On white

16.41

#310B4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#310B4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310B4B

16.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310B4B	#FFFFFF	#000000	##FFFFFF
##310B4B	1.00	16.41	1.28	16.41
#FFFFFF	16.41	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E4D

Deuteranopia (green-blind)

#00204A

Tritanopia (blue-blind)

#2D1B2B

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #310b4b;
/* rgb */ color: rgb(49, 11, 75);
/* oklch */ color: oklch(25.5% 0.111 307.0);

Tailwind

colors: {
  custom: {
    50: '#6d4f7e',
    500: '#310b4b',
    950: '#000000',
  },
}

SCSS

$custom: #310b4b;
$custom-light: #6d4f7e;
$custom-dark: #000000;

JSON

{
  "hex": "#310b4b",
  "rgb": {
    "r": 49,
    "g": 11,
    "b": 75
  },
  "hsl": {
    "h": 275.625,
    "s": 74.419,
    "l": 16.863
  },
  "oklch": {
    "l": 0.25515,
    "c": 0.11065,
    "h": 307
  },
  "luminance": 0.014
}

Semantic roles & 50–950 ramp

primary

#310B4B

secondary

#50872B

accent

#F13782

background

#F6F4F7

surface

#ECE7EE

border

#C7C3C9

text

#07020A

muted

#7A787C

Preview Lab

Preview with #310B4B

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

Preview Lab → · Contrast checker → · Palette generator →