#310F5C#310F5C

#310F5C is a dark, vivid violet. Relative luminance 0.018; OKLCH L 27.6% C 0.126 H 297.3°. Best body text is #FFFFFF at 15.52:1 contrast (WCAG AA passes).

Color values

HEX	#310F5C
RGB	rgb(49, 15, 92)
HSL	hsl(266, 72%, 21%)
HSV	hsv(266, 84%, 36%)
CMYK	cmyk(46.7%, 83.7%, 0%, 63.9%)
CIE-LAB	lab(14.22, 34.00, -38.99)
CIE-LCH	lch(14.22, 51.74, 311.09°)
OKLab	oklab(27.6% 0.0576 -0.1117)
OKLCH	oklch(27.6% 0.126 297.3)
XYZ	xyz(3.3687, 1.7673, 10.2868)
Luminance	0.0177 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 3.24

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310F5C #3A5C0F

analogous

#0F135C #310F5C #570F5C

triadic

#310F5C #5C310F #0F5C31

tetradic

#310F5C #5C0F13 #3A5C0F #0F5C57

square

#310F5C #5C0F13 #3A5C0F #0F5C57

split-complementary

#310F5C #5C570F #135C0F

monochromatic

#0E041A #150627 #310F5C #4D1891 #6920C5

Accessibility & contrast

On white

15.52

#310F5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#310F5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310F5C

15.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310F5C	#FFFFFF	#000000	##FFFFFF
##310F5C	1.00	15.52	1.35	15.52
#FFFFFF	15.52	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245E

Deuteranopia (green-blind)

#00235B

Tritanopia (blue-blind)

#262435

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #310f5c;
/* rgb */ color: rgb(49, 15, 92);
/* oklch */ color: oklch(27.6% 0.126 297.3);

Tailwind

colors: {
  custom: {
    50: '#6e528b',
    500: '#310f5c',
    950: '#000000',
  },
}

SCSS

$custom: #310f5c;
$custom-light: #6e528b;
$custom-dark: #000000;

JSON

{
  "hex": "#310f5c",
  "rgb": {
    "r": 49,
    "g": 15,
    "b": 92
  },
  "hsl": {
    "h": 266.494,
    "s": 71.963,
    "l": 20.98
  },
  "oklch": {
    "l": 0.27595,
    "c": 0.12567,
    "h": 297.3
  },
  "luminance": 0.01767
}

Semantic roles & 50–950 ramp

primary

#310F5C

secondary

#699531

accent

#EF399F

background

#F6F4F8

surface

#ECE7F0

border

#C7C3CB

text

#08020C

muted

#7B787D

Preview Lab

Preview with #310F5C

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

Preview Lab → · Contrast checker → · Palette generator →