#371B7C#371B7C

#371B7C is a dark, vivid violet. Relative luminance 0.031; OKLCH L 33.0% C 0.151 H 288.3°. Best body text is #FFFFFF at 13.04:1 contrast (WCAG AA passes).

Color values

HEX	#371B7C
RGB	rgb(55, 27, 124)
HSL	hsl(257, 64%, 30%)
HSV	hsv(257, 78%, 49%)
CMYK	cmyk(55.6%, 78.2%, 0%, 51.4%)
CIE-LAB	lab(20.25, 38.37, -49.97)
CIE-LCH	lch(20.25, 63.00, 307.53°)
OKLab	oklab(32.97% 0.0475 -0.1437)
OKLCH	oklch(32.97% 0.151 288.3)
XYZ	xyz(5.6045, 3.0510, 19.3585)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371B7C #607C1B

analogous

#1B2F7C #371B7C #681B7C

triadic

#371B7C #7C371B #1B7C37

tetradic

#371B7C #7C1B2F #607C1B #1B7C68

square

#371B7C #7C1B2F #607C1B #1B7C68

split-complementary

#371B7C #7C681B #2F7C1B

monochromatic

#0B0519 #21104A #371B7C #4D26AE #693DD5

Accessibility & contrast

On white

13.04

#371B7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#371B7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371B7C

13.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371B7C	#FFFFFF	#000000	##FFFFFF
##371B7C	1.00	13.04	1.61	13.04
#FFFFFF	13.04	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337F

Deuteranopia (green-blind)

#002E7A

Tritanopia (blue-blind)

#1B364A

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #371b7c;
/* rgb */ color: rgb(55, 27, 124);
/* oklch */ color: oklch(33.0% 0.151 288.3);

Tailwind

colors: {
  custom: {
    50: '#765ba3',
    500: '#371b7c',
    950: '#000000',
  },
}

SCSS

$custom: #371b7c;
$custom-light: #765ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#371b7c",
  "rgb": {
    "r": 55,
    "g": 27,
    "b": 124
  },
  "hsl": {
    "h": 257.32,
    "s": 64.238,
    "l": 29.608
  },
  "oklch": {
    "l": 0.32966,
    "c": 0.15134,
    "h": 288.3
  },
  "luminance": 0.03051
}

Semantic roles & 50–950 ramp

primary

#371B7C

secondary

#90B043

accent

#E741B7

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #371B7C

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

Preview Lab → · Contrast checker → · Palette generator →