#311C7D#311C7D

#311C7D is a dark, vivid violet. Relative luminance 0.030; OKLCH L 32.6% C 0.152 H 284.0°. Best body text is #FFFFFF at 13.18:1 contrast (WCAG AA passes).

Color values

HEX	#311C7D
RGB	rgb(49, 28, 125)
HSL	hsl(253, 63%, 30%)
HSV	hsv(253, 78%, 49%)
CMYK	cmyk(60.8%, 77.6%, 0%, 51%)
CIE-LAB	lab(19.90, 37.27, -51.20)
CIE-LCH	lch(19.90, 63.33, 306.05°)
OKLab	oklab(32.6% 0.0369 -0.1475)
OKLCH	oklch(32.6% 0.152 284)
XYZ	xyz(5.3824, 2.9638, 19.6865)
Luminance	0.0296 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311C7D #687D1C

analogous

#1C377D #311C7D #621C7D

triadic

#311C7D #7D311C #1C7D31

tetradic

#311C7D #7D1C37 #687D1C #1C7D62

square

#311C7D #7D1C37 #687D1C #1C7D62

split-complementary

#311C7D #7D621C #377D1C

monochromatic

#0A0619 #1D114B #311C7D #4527AF #603FD4

Accessibility & contrast

On white

13.18

#311C7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#311C7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311C7D

13.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311C7D	#FFFFFF	#000000	##FFFFFF
##311C7D	1.00	13.18	1.59	13.18
#FFFFFF	13.18	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003380

Deuteranopia (green-blind)

#002D7B

Tritanopia (blue-blind)

#03374B

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #311c7d;
/* rgb */ color: rgb(49, 28, 125);
/* oklch */ color: oklch(32.6% 0.152 284.0);

Tailwind

colors: {
  custom: {
    50: '#735ba4',
    500: '#311c7d',
    950: '#000000',
  },
}

SCSS

$custom: #311c7d;
$custom-light: #735ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#311c7d",
  "rgb": {
    "r": 49,
    "g": 28,
    "b": 125
  },
  "hsl": {
    "h": 252.99,
    "s": 63.399,
    "l": 30
  },
  "oklch": {
    "l": 0.326,
    "c": 0.15206,
    "h": 284
  },
  "luminance": 0.02964
}

Semantic roles & 50–950 ramp

primary

#311C7D

secondary

#99B144

accent

#E641C3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #311C7D

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

Preview Lab → · Contrast checker → · Palette generator →