#371B80#371B80

#371B80 is a dark, vivid violet. Relative luminance 0.032; OKLCH L 33.4% C 0.156 H 287.2°. Best body text is #FFFFFF at 12.88:1 contrast (WCAG AA passes).

Color values

HEX	#371B80
RGB	rgb(55, 27, 128)
HSL	hsl(257, 65%, 30%)
HSV	hsv(257, 79%, 50%)
CMYK	cmyk(57%, 78.9%, 0%, 49.8%)
CIE-LAB	lab(20.65, 39.57, -51.84)
CIE-LCH	lch(20.65, 65.22, 307.36°)
OKLab	oklab(33.37% 0.0463 -0.1492)
OKLCH	oklch(33.37% 0.156 287.2)
XYZ	xyz(5.8626, 3.1543, 20.7178)
Luminance	0.0316 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371B80 #64801B

analogous

#1B3180 #371B80 #691B80

triadic

#371B80 #80371B #1B8037

tetradic

#371B80 #801B31 #64801B #1B8069

square

#371B80 #801B31 #64801B #1B8069

split-complementary

#371B80 #80691B #31801B

monochromatic

#0C061B #21104D #371B80 #4D26B3 #693FD6

Accessibility & contrast

On white

12.88

#371B80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#371B80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371B80

12.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371B80	#FFFFFF	#000000	##FFFFFF
##371B80	1.00	12.88	1.63	12.88
#FFFFFF	12.88	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003483

Deuteranopia (green-blind)

#002F7E

Tritanopia (blue-blind)

#17384D

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #371b80;
/* rgb */ color: rgb(55, 27, 128);
/* oklch */ color: oklch(33.4% 0.156 287.2);

Tailwind

colors: {
  custom: {
    50: '#775ba6',
    500: '#371b80',
    950: '#000000',
  },
}

SCSS

$custom: #371b80;
$custom-light: #775ba6;
$custom-dark: #000000;

JSON

{
  "hex": "#371b80",
  "rgb": {
    "r": 55,
    "g": 27,
    "b": 128
  },
  "hsl": {
    "h": 256.634,
    "s": 65.161,
    "l": 30.392
  },
  "oklch": {
    "l": 0.33372,
    "c": 0.15621,
    "h": 287.2
  },
  "luminance": 0.03155
}

Semantic roles & 50–950 ramp

primary

#371B80

secondary

#94B443

accent

#E840B9

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A040F

muted

#7C797F

Preview Lab

Preview with #371B80

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

Preview Lab → · Contrast checker → · Palette generator →