#311F7D#311F7D

#311F7D is a dark, vivid violet. Relative luminance 0.031; OKLCH L 33.0% C 0.149 H 283.4°. Best body text is #FFFFFF at 12.94:1 contrast (WCAG AA passes).

Color values

HEX	#311F7D
RGB	rgb(49, 31, 125)
HSL	hsl(251, 60%, 31%)
HSV	hsv(251, 75%, 49%)
CMYK	cmyk(60.8%, 75.2%, 0%, 51%)
CIE-LAB	lab(20.49, 35.60, -50.22)
CIE-LCH	lch(20.49, 61.56, 305.33°)
OKLab	oklab(33.02% 0.0345 -0.1447)
OKLCH	oklch(33.02% 0.149 283.4)
XYZ	xyz(5.4571, 3.1133, 19.7114)
Luminance	0.0311 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311F7D #6B7D1F

analogous

#1F3C7D #311F7D #601F7D

triadic

#311F7D #7D311F #1F7D31

tetradic

#311F7D #7D1F3C #6B7D1F #1F7D60

square

#311F7D #7D1F3C #6B7D1F #1F7D60

split-complementary

#311F7D #7D601F #3C7D1F

monochromatic

#0B071B #1E134C #311F7D #442BAE #6045D1

Accessibility & contrast

On white

12.94

#311F7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#311F7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311F7D

12.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311F7D	#FFFFFF	#000000	##FFFFFF
##311F7D	1.00	12.94	1.62	12.94
#FFFFFF	12.94	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003480

Deuteranopia (green-blind)

#002E7B

Tritanopia (blue-blind)

#03394C

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #311f7d;
/* rgb */ color: rgb(49, 31, 125);
/* oklch */ color: oklch(33.0% 0.149 283.4);

Tailwind

colors: {
  custom: {
    50: '#735da4',
    500: '#311f7d',
    950: '#000000',
  },
}

SCSS

$custom: #311f7d;
$custom-light: #735da4;
$custom-dark: #000000;

JSON

{
  "hex": "#311f7d",
  "rgb": {
    "r": 49,
    "g": 31,
    "b": 125
  },
  "hsl": {
    "h": 251.489,
    "s": 60.256,
    "l": 30.588
  },
  "oklch": {
    "l": 0.33019,
    "c": 0.14875,
    "h": 283.4
  },
  "luminance": 0.03114
}

Semantic roles & 50–950 ramp

primary

#311F7D

secondary

#9CB048

accent

#E344C5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #311F7D

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

Preview Lab → · Contrast checker → · Palette generator →