#311D73#311D73

#311D73 is a dark, vivid violet. Relative luminance 0.028; OKLCH L 31.7% C 0.138 H 286.2°. Best body text is #FFFFFF at 13.51:1 contrast (WCAG AA passes).

Color values

HEX	#311D73
RGB	rgb(49, 29, 115)
HSL	hsl(254, 60%, 28%)
HSV	hsv(254, 75%, 45%)
CMYK	cmyk(57.4%, 74.8%, 0%, 54.9%)
CIE-LAB	lab(19.09, 33.54, -46.12)
CIE-LCH	lch(19.09, 57.02, 306.03°)
OKLab	oklab(31.73% 0.0385 -0.1326)
OKLCH	oklch(31.73% 0.138 286.2)
XYZ	xyz(4.7996, 2.7692, 16.4979)
Luminance	0.0277 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311D73 #5F731D

analogous

#1D3473 #311D73 #5C1D73

triadic

#311D73 #73311D #1D7331

tetradic

#311D73 #731D34 #5F731D #1D735C

square

#311D73 #731D34 #5F731D #1D735C

split-complementary

#311D73 #735C1D #34731D

monochromatic

#0A0618 #1C1142 #311D73 #4629A4 #5E3CCE

Accessibility & contrast

On white

13.51

#311D73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#311D73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311D73

13.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311D73	#FFFFFF	#000000	##FFFFFF
##311D73	1.00	13.51	1.55	13.51
#FFFFFF	13.51	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003176

Deuteranopia (green-blind)

#002C71

Tritanopia (blue-blind)

#143446

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #311d73;
/* rgb */ color: rgb(49, 29, 115);
/* oklch */ color: oklch(31.7% 0.138 286.2);

Tailwind

colors: {
  custom: {
    50: '#715b9c',
    500: '#311d73',
    950: '#000000',
  },
}

SCSS

$custom: #311d73;
$custom-light: #715b9c;
$custom-dark: #000000;

JSON

{
  "hex": "#311d73",
  "rgb": {
    "r": 49,
    "g": 29,
    "b": 115
  },
  "hsl": {
    "h": 253.953,
    "s": 59.722,
    "l": 28.235
  },
  "oklch": {
    "l": 0.31727,
    "c": 0.13813,
    "h": 286.2
  },
  "luminance": 0.0277
}

Semantic roles & 50–950 ramp

primary

#311D73

secondary

#90A745

accent

#E345BE

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #311D73

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

Preview Lab → · Contrast checker → · Palette generator →