#310C57#310C57

#310C57 is a dark, vivid violet. Relative luminance 0.016; OKLCH L 26.8% C 0.123 H 300.2°. Best body text is #FFFFFF at 15.90:1 contrast (WCAG AA passes).

Color values

HEX	#310C57
RGB	rgb(49, 12, 87)
HSL	hsl(270, 76%, 19%)
HSV	hsv(270, 86%, 34%)
CMYK	cmyk(43.7%, 86.2%, 0%, 65.9%)
CIE-LAB	lab(13.25, 33.96, -37.20)
CIE-LCH	lch(13.25, 50.37, 312.40°)
OKLab	oklab(26.77% 0.0619 -0.1064)
OKLCH	oklch(26.77% 0.123 300.2)
XYZ	xyz(3.1180, 1.6040, 9.1603)
Luminance	0.0160 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 3.32

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310C57 #32570C

analogous

#0C0C57 #310C57 #570C57

triadic

#310C57 #57310C #0C5731

tetradic

#310C57 #570C0C #32570C #0C5757

square

#310C57 #570C0C #32570C #0C5757

split-complementary

#310C57 #57570C #0C570C

monochromatic

#0F041B #130521 #310C57 #4F138D #6E1BC3

Accessibility & contrast

On white

15.90

#310C57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#310C57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310C57

15.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310C57	#FFFFFF	#000000	##FFFFFF
##310C57	1.00	15.90	1.32	15.90
#FFFFFF	15.90	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002259

Deuteranopia (green-blind)

#002156

Tritanopia (blue-blind)

#282132

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #310c57;
/* rgb */ color: rgb(49, 12, 87);
/* oklch */ color: oklch(26.8% 0.123 300.2);

Tailwind

colors: {
  custom: {
    50: '#6e5087',
    500: '#310c57',
    950: '#000000',
  },
}

SCSS

$custom: #310c57;
$custom-light: #6e5087;
$custom-dark: #000000;

JSON

{
  "hex": "#310c57",
  "rgb": {
    "r": 49,
    "g": 12,
    "b": 87
  },
  "hsl": {
    "h": 269.6,
    "s": 75.758,
    "l": 19.412
  },
  "oklch": {
    "l": 0.26773,
    "c": 0.12308,
    "h": 300.2
  },
  "luminance": 0.01604
}

Semantic roles & 50–950 ramp

primary

#310C57

secondary

#60922D

accent

#F23595

background

#F6F4F8

surface

#ECE7EF

border

#C7C3CA

text

#08020B

muted

#7B787C

Preview Lab

Preview with #310C57

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

Preview Lab → · Contrast checker → · Palette generator →