#311D7F#311D7F

#311D7F is a dark, vivid violet. Relative luminance 0.031; OKLCH L 32.9% C 0.154 H 283.4°. Best body text is #FFFFFF at 13.02:1 contrast (WCAG AA passes).

Color values

HEX	#311D7F
RGB	rgb(49, 29, 127)
HSL	hsl(252, 63%, 31%)
HSV	hsv(252, 77%, 50%)
CMYK	cmyk(61.4%, 77.2%, 0%, 50.2%)
CIE-LAB	lab(20.30, 37.36, -51.81)
CIE-LCH	lch(20.30, 63.88, 305.79°)
OKLab	oklab(32.94% 0.0356 -0.1493)
OKLCH	oklch(32.94% 0.154 283.4)
XYZ	xyz(5.5356, 3.0636, 20.3742)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311D7F #6B7F1D

analogous

#1D3A7F #311D7F #621D7F

triadic

#311D7F #7F311D #1D7F31

tetradic

#311D7F #7F1D3A #6B7F1D #1D7F62

square

#311D7F #7F1D3A #6B7F1D #1D7F62

split-complementary

#311D7F #7F621D #3A7F1D

monochromatic

#0B061B #1E124D #311D7F #4428B1 #6042D4

Accessibility & contrast

On white

13.02

#311D7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#311D7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311D7F

13.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311D7F	#FFFFFF	#000000	##FFFFFF
##311D7F	1.00	13.02	1.61	13.02
#FFFFFF	13.02	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003482

Deuteranopia (green-blind)

#002E7D

Tritanopia (blue-blind)

#00394C

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #311d7f;
/* rgb */ color: rgb(49, 29, 127);
/* oklch */ color: oklch(32.9% 0.154 283.4);

Tailwind

colors: {
  custom: {
    50: '#735ca5',
    500: '#311d7f',
    950: '#000000',
  },
}

SCSS

$custom: #311d7f;
$custom-light: #735ca5;
$custom-dark: #000000;

JSON

{
  "hex": "#311d7f",
  "rgb": {
    "r": 49,
    "g": 29,
    "b": 127
  },
  "hsl": {
    "h": 252.245,
    "s": 62.821,
    "l": 30.588
  },
  "oklch": {
    "l": 0.32943,
    "c": 0.15351,
    "h": 283.4
  },
  "luminance": 0.03064
}

Semantic roles & 50–950 ramp

primary

#311D7F

secondary

#9CB245

accent

#E642C4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #311D7F

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

Preview Lab → · Contrast checker → · Palette generator →