#311558#311558

#311558 is a dark, moderate violet. Relative luminance 0.019; OKLCH L 28.0% C 0.113 H 297.7°. Best body text is #FFFFFF at 15.23:1 contrast (WCAG AA passes).

Color values

HEX	#311558
RGB	rgb(49, 21, 88)
HSL	hsl(265, 61%, 21%)
HSV	hsv(265, 76%, 35%)
CMYK	cmyk(44.3%, 76.1%, 0%, 65.5%)
CIE-LAB	lab(14.92, 29.77, -35.15)
CIE-LCH	lch(14.92, 46.07, 310.26°)
OKLab	oklab(27.97% 0.0527 -0.1004)
OKLCH	oklch(27.97% 0.113 297.7)
XYZ	xyz(3.2958, 1.8938, 9.4225)
Luminance	0.0189 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311558 #3C5815

analogous

#151B58 #311558 #531558

triadic

#311558 #583115 #155831

tetradic

#311558 #58151B #3C5815 #155853

square

#311558 #58151B #3C5815 #155853

split-complementary

#311558 #585315 #1B5815

monochromatic

#0E0619 #150927 #311558 #4D2189 #682DBB

Accessibility & contrast

On white

15.23

#311558 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#311558 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311558

15.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311558	#FFFFFF	#000000	##FFFFFF
##311558	1.00	15.23	1.38	15.23
#FFFFFF	15.23	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00265A

Deuteranopia (green-blind)

#002557

Tritanopia (blue-blind)

#272635

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #311558;
/* rgb */ color: rgb(49, 21, 88);
/* oklch */ color: oklch(28.0% 0.113 297.7);

Tailwind

colors: {
  custom: {
    50: '#6d5588',
    500: '#311558',
    950: '#000000',
  },
}

SCSS

$custom: #311558;
$custom-light: #6d5588;
$custom-dark: #000000;

JSON

{
  "hex": "#311558",
  "rgb": {
    "r": 49,
    "g": 21,
    "b": 88
  },
  "hsl": {
    "h": 265.075,
    "s": 61.468,
    "l": 21.373
  },
  "oklch": {
    "l": 0.27974,
    "c": 0.11339,
    "h": 297.7
  },
  "luminance": 0.01894
}

Semantic roles & 50–950 ramp

primary

#311558

secondary

#6B9039

accent

#E543A1

background

#F6F5F8

surface

#ECE9F0

border

#C7C5CB

text

#07030B

muted

#7A787C

Preview Lab

Preview with #311558

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

Preview Lab → · Contrast checker → · Palette generator →