#311C7C#311C7C

#311C7C is a dark, vivid violet. Relative luminance 0.029; OKLCH L 32.5% C 0.151 H 284.3°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#311C7C
RGB	rgb(49, 28, 124)
HSL	hsl(253, 63%, 30%)
HSV	hsv(253, 77%, 49%)
CMYK	cmyk(60.5%, 77.4%, 0%, 51.4%)
CIE-LAB	lab(19.80, 36.96, -50.73)
CIE-LCH	lch(19.80, 62.77, 306.07°)
OKLab	oklab(32.5% 0.0371 -0.1461)
OKLCH	oklch(32.5% 0.151 284.3)
XYZ	xyz(5.3189, 2.9384, 19.3518)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311C7C #677C1C

analogous

#1C377C #311C7C #611C7C

triadic

#311C7C #7C311C #1C7C31

tetradic

#311C7C #7C1C37 #677C1C #1C7C61

square

#311C7C #7C1C37 #677C1C #1C7C61

split-complementary

#311C7C #7C611C #377C1C

monochromatic

#0A0619 #1D114A #311C7C #4527AE #5F3FD4

Accessibility & contrast

On white

13.23

#311C7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#311C7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311C7C

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311C7C	#FFFFFF	#000000	##FFFFFF
##311C7C	1.00	13.23	1.59	13.23
#FFFFFF	13.23	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337F

Deuteranopia (green-blind)

#002D7A

Tritanopia (blue-blind)

#05374B

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #311c7c;
/* rgb */ color: rgb(49, 28, 124);
/* oklch */ color: oklch(32.5% 0.151 284.3);

Tailwind

colors: {
  custom: {
    50: '#735ba3',
    500: '#311c7c',
    950: '#000000',
  },
}

SCSS

$custom: #311c7c;
$custom-light: #735ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#311c7c",
  "rgb": {
    "r": 49,
    "g": 28,
    "b": 124
  },
  "hsl": {
    "h": 253.125,
    "s": 63.158,
    "l": 29.804
  },
  "oklch": {
    "l": 0.32496,
    "c": 0.1508,
    "h": 284.3
  },
  "luminance": 0.02939
}

Semantic roles & 50–950 ramp

primary

#311C7C

secondary

#98B044

accent

#E642C2

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #311C7C

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

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