#311A73#311A73

#311A73 is a dark, vivid violet. Relative luminance 0.026; OKLCH L 31.3% C 0.142 H 286.9°. Best body text is #FFFFFF at 13.76:1 contrast (WCAG AA passes).

Color values

HEX	#311A73
RGB	rgb(49, 26, 115)
HSL	hsl(256, 63%, 28%)
HSV	hsv(256, 77%, 45%)
CMYK	cmyk(57.4%, 77.4%, 0%, 54.9%)
CIE-LAB	lab(18.49, 35.23, -47.10)
CIE-LCH	lch(18.49, 58.82, 306.79°)
OKLab	oklab(31.3% 0.0412 -0.1355)
OKLCH	oklch(31.3% 0.142 286.9)
XYZ	xyz(4.7296, 2.6293, 16.4746)
Luminance	0.0263 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311A73 #5C731A

analogous

#1A2F73 #311A73 #5E1A73

triadic

#311A73 #73311A #1A7331

tetradic

#311A73 #731A2F #5C731A #1A735E

square

#311A73 #731A2F #5C731A #1A735E

split-complementary

#311A73 #735E1A #2F731A

monochromatic

#0B0619 #1C0F41 #311A73 #4625A5 #5E36D2

Accessibility & contrast

On white

13.76

#311A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#311A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311A73

13.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311A73	#FFFFFF	#000000	##FFFFFF
##311A73	1.00	13.76	1.53	13.76
#FFFFFF	13.76	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F76

Deuteranopia (green-blind)

#002B71

Tritanopia (blue-blind)

#143345

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #311a73;
/* rgb */ color: rgb(49, 26, 115);
/* oklch */ color: oklch(31.3% 0.142 286.9);

Tailwind

colors: {
  custom: {
    50: '#71599c',
    500: '#311a73',
    950: '#000000',
  },
}

SCSS

$custom: #311a73;
$custom-light: #71599c;
$custom-dark: #000000;

JSON

{
  "hex": "#311a73",
  "rgb": {
    "r": 49,
    "g": 26,
    "b": 115
  },
  "hsl": {
    "h": 255.506,
    "s": 63.121,
    "l": 27.647
  },
  "oklch": {
    "l": 0.31301,
    "c": 0.14163,
    "h": 286.9
  },
  "luminance": 0.0263
}

Semantic roles & 50–950 ramp

primary

#311A73

secondary

#8DA841

accent

#E642BC

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #311A73

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

Preview Lab → · Contrast checker → · Palette generator →