#311F73#311F73

#311F73 is a dark, vivid violet. Relative luminance 0.029; OKLCH L 32.0% C 0.136 H 285.7°. Best body text is #FFFFFF at 13.34:1 contrast (WCAG AA passes).

Color values

HEX	#311F73
RGB	rgb(49, 31, 115)
HSL	hsl(253, 58%, 29%)
HSV	hsv(253, 73%, 45%)
CMYK	cmyk(57.4%, 73%, 0%, 54.9%)
CIE-LAB	lab(19.52, 32.36, -45.42)
CIE-LCH	lch(19.52, 55.77, 305.47°)
OKLab	oklab(32.03% 0.0367 -0.1306)
OKLCH	oklch(32.03% 0.136 285.7)
XYZ	xyz(4.8502, 2.8705, 16.5148)
Luminance	0.0287 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311F73 #61731F

analogous

#1F3773 #311F73 #5B1F73

triadic

#311F73 #73311F #1F7331

tetradic

#311F73 #731F37 #61731F #1F735B

square

#311F73 #731F37 #61731F #1F735B

split-complementary

#311F73 #735B1F #37731F

monochromatic

#0A0618 #1C1243 #311F73 #462CA3 #5E41CC

Accessibility & contrast

On white

13.34

#311F73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#311F73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311F73

13.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311F73	#FFFFFF	#000000	##FFFFFF
##311F73	1.00	13.34	1.57	13.34
#FFFFFF	13.34	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003176

Deuteranopia (green-blind)

#002D71

Tritanopia (blue-blind)

#143546

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #311f73;
/* rgb */ color: rgb(49, 31, 115);
/* oklch */ color: oklch(32.0% 0.136 285.7);

Tailwind

colors: {
  custom: {
    50: '#715c9c',
    500: '#311f73',
    950: '#000000',
  },
}

SCSS

$custom: #311f73;
$custom-light: #715c9c;
$custom-dark: #000000;

JSON

{
  "hex": "#311f73",
  "rgb": {
    "r": 49,
    "g": 31,
    "b": 115
  },
  "hsl": {
    "h": 252.857,
    "s": 57.534,
    "l": 28.627
  },
  "oklch": {
    "l": 0.32028,
    "c": 0.13568,
    "h": 285.7
  },
  "luminance": 0.02871
}

Semantic roles & 50–950 ramp

primary

#311F73

secondary

#92A747

accent

#E147C0

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #311F73

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

Preview Lab → · Contrast checker → · Palette generator →