#371F78#371F78

#371F78 is a dark, vivid violet. Relative luminance 0.031; OKLCH L 33.1% C 0.142 H 288.5°. Best body text is #FFFFFF at 12.89:1 contrast (WCAG AA passes).

Color values

HEX	#371F78
RGB	rgb(55, 31, 120)
HSL	hsl(256, 59%, 30%)
HSV	hsv(256, 74%, 47%)
CMYK	cmyk(54.2%, 74.2%, 0%, 52.9%)
CIE-LAB	lab(20.63, 34.99, -46.79)
CIE-LCH	lch(20.63, 58.42, 306.79°)
OKLab	oklab(33.12% 0.045 -0.1344)
OKLCH	oklch(33.12% 0.142 288.5)
XYZ	xyz(5.4547, 3.1480, 18.0859)
Luminance	0.0315 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371F78 #60781F

analogous

#1F3478 #371F78 #641F78

triadic

#371F78 #78371F #1F7837

tetradic

#371F78 #781F34 #60781F #1F7864

square

#371F78 #781F34 #60781F #1F7864

split-complementary

#371F78 #78641F #34781F

monochromatic

#0B0618 #211247 #371F78 #4D2CA9 #6943CE

Accessibility & contrast

On white

12.89

#371F78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#371F78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371F78

12.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371F78	#FFFFFF	#000000	##FFFFFF
##371F78	1.00	12.89	1.63	12.89
#FFFFFF	12.89	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347B

Deuteranopia (green-blind)

#002F76

Tritanopia (blue-blind)

#1E3649

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #371f78;
/* rgb */ color: rgb(55, 31, 120);
/* oklch */ color: oklch(33.1% 0.142 288.5);

Tailwind

colors: {
  custom: {
    50: '#755da0',
    500: '#371f78',
    950: '#000000',
  },
}

SCSS

$custom: #371f78;
$custom-light: #755da0;
$custom-dark: #000000;

JSON

{
  "hex": "#371f78",
  "rgb": {
    "r": 55,
    "g": 31,
    "b": 120
  },
  "hsl": {
    "h": 256.18,
    "s": 58.94,
    "l": 29.608
  },
  "oklch": {
    "l": 0.33116,
    "c": 0.14174,
    "h": 288.5
  },
  "luminance": 0.03148
}

Semantic roles & 50–950 ramp

primary

#371F78

secondary

#90AB47

accent

#E246B8

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040F

muted

#7B797E

Preview Lab

Preview with #371F78

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

Preview Lab → · Contrast checker → · Palette generator →