#311580#311580

#311580 is a dark, vivid violet. Relative luminance 0.027; OKLCH L 32.1% C 0.162 H 284.5°. Best body text is #FFFFFF at 13.55:1 contrast (WCAG AA passes).

Color values

HEX	#311580
RGB	rgb(49, 21, 128)
HSL	hsl(256, 72%, 29%)
HSV	hsv(256, 84%, 50%)
CMYK	cmyk(61.7%, 83.6%, 0%, 49.8%)
CIE-LAB	lab(19.00, 41.70, -54.58)
CIE-LCH	lch(19.00, 68.68, 307.38°)
OKLab	oklab(32.07% 0.0407 -0.1573)
OKLCH	oklch(32.07% 0.162 284.5)
XYZ	xyz(5.4299, 2.7475, 20.6621)
Luminance	0.0275 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311580 #648015

analogous

#152F80 #311580 #671580

triadic

#311580 #803115 #158031

tetradic

#311580 #80152F #648015 #158067

square

#311580 #80152F #648015 #158067

split-complementary

#311580 #806715 #2F8015

monochromatic

#0A041A #1D0C4B #311580 #451EB5 #5F32DD

Accessibility & contrast

On white

13.55

#311580 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#311580 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311580

13.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311580	#FFFFFF	#000000	##FFFFFF
##311580	1.00	13.55	1.55	13.55
#FFFFFF	13.55	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003183

Deuteranopia (green-blind)

#002B7E

Tritanopia (blue-blind)

#00364B

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #311580;
/* rgb */ color: rgb(49, 21, 128);
/* oklch */ color: oklch(32.1% 0.162 284.5);

Tailwind

colors: {
  custom: {
    50: '#7457a6',
    500: '#311580',
    950: '#000000',
  },
}

SCSS

$custom: #311580;
$custom-light: #7457a6;
$custom-dark: #000000;

JSON

{
  "hex": "#311580",
  "rgb": {
    "r": 49,
    "g": 21,
    "b": 128
  },
  "hsl": {
    "h": 255.701,
    "s": 71.812,
    "l": 29.216
  },
  "oklch": {
    "l": 0.32072,
    "c": 0.16249,
    "h": 284.5
  },
  "luminance": 0.02748
}

Semantic roles & 50–950 ramp

primary

#311580

secondary

#95B53C

accent

#EF39BF

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#09030F

muted

#7B787F

Preview Lab

Preview with #311580

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

Preview Lab → · Contrast checker → · Palette generator →