#311C7F#311C7F

#311C7F is a dark, vivid violet. Relative luminance 0.030; OKLCH L 32.8% C 0.155 H 283.6°. Best body text is #FFFFFF at 13.10:1 contrast (WCAG AA passes).

Color values

HEX	#311C7F
RGB	rgb(49, 28, 127)
HSL	hsl(253, 64%, 30%)
HSV	hsv(253, 78%, 50%)
CMYK	cmyk(61.4%, 78%, 0%, 50.2%)
CIE-LAB	lab(20.11, 37.90, -52.13)
CIE-LCH	lch(20.11, 64.45, 306.02°)
OKLab	oklab(32.81% 0.0363 -0.1502)
OKLCH	oklch(32.81% 0.155 283.6)
XYZ	xyz(5.5115, 3.0154, 20.3662)
Luminance	0.0302 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311C7F #6A7F1C

analogous

#1C397F #311C7F #621C7F

triadic

#311C7F #7F311C #1C7F31

tetradic

#311C7F #7F1C39 #6A7F1C #1C7F62

square

#311C7F #7F1C39 #6A7F1C #1C7F62

split-complementary

#311C7F #7F621C #397F1C

monochromatic

#0A061B #1E114D #311C7F #4427B1 #6040D5

Accessibility & contrast

On white

13.10

#311C7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#311C7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311C7F

13.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311C7F	#FFFFFF	#000000	##FFFFFF
##311C7F	1.00	13.10	1.60	13.10
#FFFFFF	13.10	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003382

Deuteranopia (green-blind)

#002D7D

Tritanopia (blue-blind)

#00384C

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #311c7f;
/* rgb */ color: rgb(49, 28, 127);
/* oklch */ color: oklch(32.8% 0.155 283.6);

Tailwind

colors: {
  custom: {
    50: '#745ba5',
    500: '#311c7f',
    950: '#000000',
  },
}

SCSS

$custom: #311c7f;
$custom-light: #745ba5;
$custom-dark: #000000;

JSON

{
  "hex": "#311c7f",
  "rgb": {
    "r": 49,
    "g": 28,
    "b": 127
  },
  "hsl": {
    "h": 252.727,
    "s": 63.871,
    "l": 30.392
  },
  "oklch": {
    "l": 0.32808,
    "c": 0.15457,
    "h": 283.6
  },
  "luminance": 0.03016
}

Semantic roles & 50–950 ramp

primary

#311C7F

secondary

#9BB344

accent

#E741C4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #311C7F

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

Preview Lab → · Contrast checker → · Palette generator →