#311C73#311C73

#311C73 is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.6% C 0.139 H 286.4°. Best body text is #FFFFFF at 13.60:1 contrast (WCAG AA passes).

Color values

HEX	#311C73
RGB	rgb(49, 28, 115)
HSL	hsl(254, 61%, 28%)
HSV	hsv(254, 76%, 45%)
CMYK	cmyk(57.4%, 75.7%, 0%, 54.9%)
CIE-LAB	lab(18.89, 34.11, -46.45)
CIE-LCH	lch(18.89, 57.63, 306.29°)
OKLab	oklab(31.58% 0.0394 -0.1336)
OKLCH	oklch(31.58% 0.139 286.4)
XYZ	xyz(4.7755, 2.7210, 16.4899)
Luminance	0.0272 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311C73 #5E731C

analogous

#1C3273 #311C73 #5C1C73

triadic

#311C73 #73311C #1C7331

tetradic

#311C73 #731C32 #5E731C #1C735C

square

#311C73 #731C32 #5E731C #1C735C

split-complementary

#311C73 #735C1C #32731C

monochromatic

#0A0619 #1C1042 #311C73 #4628A4 #5E3ACF

Accessibility & contrast

On white

13.60

#311C73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#311C73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311C73

13.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311C73	#FFFFFF	#000000	##FFFFFF
##311C73	1.00	13.60	1.54	13.60
#FFFFFF	13.60	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003076

Deuteranopia (green-blind)

#002B71

Tritanopia (blue-blind)

#143345

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #311c73;
/* rgb */ color: rgb(49, 28, 115);
/* oklch */ color: oklch(31.6% 0.139 286.4);

Tailwind

colors: {
  custom: {
    50: '#715a9c',
    500: '#311c73',
    950: '#000000',
  },
}

SCSS

$custom: #311c73;
$custom-light: #715a9c;
$custom-dark: #000000;

JSON

{
  "hex": "#311c73",
  "rgb": {
    "r": 49,
    "g": 28,
    "b": 115
  },
  "hsl": {
    "h": 254.483,
    "s": 60.839,
    "l": 28.039
  },
  "oklch": {
    "l": 0.31581,
    "c": 0.13932,
    "h": 286.4
  },
  "luminance": 0.02721
}

Semantic roles & 50–950 ramp

primary

#311C73

secondary

#8FA743

accent

#E444BD

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #311C73

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

Preview Lab → · Contrast checker → · Palette generator →