#311D7D#311D7D

#311D7D is a dark, vivid violet. Relative luminance 0.030; OKLCH L 32.7% C 0.151 H 283.8°. Best body text is #FFFFFF at 13.11:1 contrast (WCAG AA passes).

Color values

HEX	#311D7D
RGB	rgb(49, 29, 125)
HSL	hsl(253, 62%, 30%)
HSV	hsv(253, 77%, 49%)
CMYK	cmyk(60.8%, 76.8%, 0%, 51%)
CIE-LAB	lab(20.09, 36.72, -50.88)
CIE-LCH	lch(20.09, 62.75, 305.82°)
OKLab	oklab(32.74% 0.0361 -0.1466)
OKLCH	oklch(32.74% 0.151 283.8)
XYZ	xyz(5.4065, 3.0120, 19.6945)
Luminance	0.0301 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311D7D #697D1D

analogous

#1D397D #311D7D #611D7D

triadic

#311D7D #7D311D #1D7D31

tetradic

#311D7D #7D1D39 #697D1D #1D7D61

square

#311D7D #7D1D39 #697D1D #1D7D61

split-complementary

#311D7D #7D611D #397D1D

monochromatic

#0A061A #1E114B #311D7D #4429AF #6041D3

Accessibility & contrast

On white

13.11

#311D7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#311D7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311D7D

13.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311D7D	#FFFFFF	#000000	##FFFFFF
##311D7D	1.00	13.11	1.60	13.11
#FFFFFF	13.11	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003380

Deuteranopia (green-blind)

#002D7B

Tritanopia (blue-blind)

#03384B

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #311d7d;
/* rgb */ color: rgb(49, 29, 125);
/* oklch */ color: oklch(32.7% 0.151 283.8);

Tailwind

colors: {
  custom: {
    50: '#735ba4',
    500: '#311d7d',
    950: '#000000',
  },
}

SCSS

$custom: #311d7d;
$custom-light: #735ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#311d7d",
  "rgb": {
    "r": 49,
    "g": 29,
    "b": 125
  },
  "hsl": {
    "h": 252.5,
    "s": 62.338,
    "l": 30.196
  },
  "oklch": {
    "l": 0.32736,
    "c": 0.15098,
    "h": 283.8
  },
  "luminance": 0.03012
}

Semantic roles & 50–950 ramp

primary

#311D7D

secondary

#9AB145

accent

#E542C3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #311D7D

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

Preview Lab → · Contrast checker → · Palette generator →