#371B71#371B71

#371B71 is a dark, vivid violet. Relative luminance 0.028; OKLCH L 31.9% C 0.138 H 291.5°. Best body text is #FFFFFF at 13.48:1 contrast (WCAG AA passes).

Color values

HEX	#371B71
RGB	rgb(55, 27, 113)
HSL	hsl(260, 61%, 27%)
HSV	hsv(260, 76%, 44%)
CMYK	cmyk(51.3%, 76.1%, 0%, 55.7%)
CIE-LAB	lab(19.17, 35.07, -44.67)
CIE-LCH	lch(19.17, 56.79, 308.14°)
OKLab	oklab(31.88% 0.0504 -0.1282)
OKLCH	oklch(31.88% 0.138 291.5)
XYZ	xyz(4.9473, 2.7882, 15.8971)
Luminance	0.0279 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371B71 #55711B

analogous

#1B2A71 #371B71 #621B71

triadic

#371B71 #71371B #1B7137

tetradic

#371B71 #711B2A #55711B #1B7162

square

#371B71 #711B2A #55711B #1B7162

split-complementary

#371B71 #71621B #2A711B

monochromatic

#0C0619 #1F0F40 #371B71 #4F27A2 #6937CF

Accessibility & contrast

On white

13.48

#371B71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#371B71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371B71

13.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371B71	#FFFFFF	#000000	##FFFFFF
##371B71	1.00	13.48	1.56	13.48
#FFFFFF	13.48	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003074

Deuteranopia (green-blind)

#002D6F

Tritanopia (blue-blind)

#243244

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #371b71;
/* rgb */ color: rgb(55, 27, 113);
/* oklch */ color: oklch(31.9% 0.138 291.5);

Tailwind

colors: {
  custom: {
    50: '#745a9b',
    500: '#371b71',
    950: '#000000',
  },
}

SCSS

$custom: #371b71;
$custom-light: #745a9b;
$custom-dark: #000000;

JSON

{
  "hex": "#371b71",
  "rgb": {
    "r": 55,
    "g": 27,
    "b": 113
  },
  "hsl": {
    "h": 259.535,
    "s": 61.429,
    "l": 27.451
  },
  "oklch": {
    "l": 0.31883,
    "c": 0.13772,
    "h": 291.5
  },
  "luminance": 0.02788
}

Semantic roles & 50–950 ramp

primary

#371B71

secondary

#85A642

accent

#E543B0

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040E

muted

#7B797E

Preview Lab

Preview with #371B71

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

Preview Lab → · Contrast checker → · Palette generator →