#310C55#310C55

#310C55 is a dark, vivid violet. Relative luminance 0.016; OKLCH L 26.6% C 0.121 H 301.2°. Best body text is #FFFFFF at 15.98:1 contrast (WCAG AA passes).

Color values

HEX	#310C55
RGB	rgb(49, 12, 85)
HSL	hsl(270, 75%, 19%)
HSV	hsv(270, 86%, 33%)
CMYK	cmyk(42.4%, 85.9%, 0%, 66.7%)
CIE-LAB	lab(13.06, 33.42, -36.16)
CIE-LCH	lch(13.06, 49.24, 312.74°)
OKLab	oklab(26.58% 0.0626 -0.1033)
OKLCH	oklch(26.58% 0.121 301.2)
XYZ	xyz(3.0374, 1.5718, 8.7359)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310C55 #30550C

analogous

#0D0C55 #310C55 #550C55

triadic

#310C55 #55310C #0C5531

tetradic

#310C55 #550D0C #30550C #0C5555

square

#310C55 #550D0C #30550C #0C5555

split-complementary

#310C55 #55550C #0C550D

monochromatic

#0F041B #12041F #310C55 #50148B #6F1BC0

Accessibility & contrast

On white

15.98

#310C55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#310C55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310C55

15.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310C55	#FFFFFF	#000000	##FFFFFF
##310C55	1.00	15.98	1.31	15.98
#FFFFFF	15.98	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002157

Deuteranopia (green-blind)

#002154

Tritanopia (blue-blind)

#292031

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #310c55;
/* rgb */ color: rgb(49, 12, 85);
/* oklch */ color: oklch(26.6% 0.121 301.2);

Tailwind

colors: {
  custom: {
    50: '#6e5086',
    500: '#310c55',
    950: '#000000',
  },
}

SCSS

$custom: #310c55;
$custom-light: #6e5086;
$custom-dark: #000000;

JSON

{
  "hex": "#310c55",
  "rgb": {
    "r": 49,
    "g": 12,
    "b": 85
  },
  "hsl": {
    "h": 270.411,
    "s": 75.258,
    "l": 19.02
  },
  "oklch": {
    "l": 0.26575,
    "c": 0.12081,
    "h": 301.2
  },
  "luminance": 0.01572
}

Semantic roles & 50–950 ramp

primary

#310C55

secondary

#5E902D

accent

#F23693

background

#F6F4F8

surface

#ECE7EF

border

#C7C3CA

text

#07020B

muted

#7A787C

Preview Lab

Preview with #310C55

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

Preview Lab → · Contrast checker → · Palette generator →