#311C79#311C79

#311C79 is a dark, vivid violet. Relative luminance 0.029; OKLCH L 32.2% C 0.147 H 285.0°. Best body text is #FFFFFF at 13.35:1 contrast (WCAG AA passes).

Color values

HEX	#311C79
RGB	rgb(49, 28, 121)
HSL	hsl(254, 62%, 29%)
HSV	hsv(254, 77%, 47%)
CMYK	cmyk(59.5%, 76.9%, 0%, 52.5%)
CIE-LAB	lab(19.49, 36.01, -49.32)
CIE-LCH	lch(19.49, 61.07, 306.13°)
OKLab	oklab(32.19% 0.0379 -0.142)
OKLCH	oklch(32.19% 0.147 285)
XYZ	xyz(5.1320, 2.8636, 18.3678)
Luminance	0.0286 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311C79 #64791C

analogous

#1C3679 #311C79 #601C79

triadic

#311C79 #79311C #1C7931

tetradic

#311C79 #791C36 #64791C #1C7960

square

#311C79 #791C36 #64791C #1C7960

split-complementary

#311C79 #79601C #36791C

monochromatic

#0A0619 #1D1047 #311C79 #4528AB #5F3DD2

Accessibility & contrast

On white

13.35

#311C79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#311C79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311C79

13.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311C79	#FFFFFF	#000000	##FFFFFF
##311C79	1.00	13.35	1.57	13.35
#FFFFFF	13.35	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327C

Deuteranopia (green-blind)

#002C77

Tritanopia (blue-blind)

#0B3649

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #311c79;
/* rgb */ color: rgb(49, 28, 121);
/* oklch */ color: oklch(32.2% 0.147 285.0);

Tailwind

colors: {
  custom: {
    50: '#725ba1',
    500: '#311c79',
    950: '#000000',
  },
}

SCSS

$custom: #311c79;
$custom-light: #725ba1;
$custom-dark: #000000;

JSON

{
  "hex": "#311c79",
  "rgb": {
    "r": 49,
    "g": 28,
    "b": 121
  },
  "hsl": {
    "h": 253.548,
    "s": 62.416,
    "l": 29.216
  },
  "oklch": {
    "l": 0.32188,
    "c": 0.14701,
    "h": 285
  },
  "luminance": 0.02864
}

Semantic roles & 50–950 ramp

primary

#311C79

secondary

#95AD44

accent

#E542C1

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#09040F

muted

#7B797F

Preview Lab

Preview with #311C79

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

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