#371F7B#371F7B

#371F7B is a dark, vivid violet. Relative luminance 0.032; OKLCH L 33.4% C 0.146 H 287.7°. Best body text is #FFFFFF at 12.77:1 contrast (WCAG AA passes).

Color values

HEX	#371F7B
RGB	rgb(55, 31, 123)
HSL	hsl(256, 60%, 30%)
HSV	hsv(256, 75%, 48%)
CMYK	cmyk(55.3%, 74.8%, 0%, 51.8%)
CIE-LAB	lab(20.91, 35.91, -48.24)
CIE-LCH	lch(20.91, 60.14, 306.67°)
OKLab	oklab(33.41% 0.0443 -0.1387)
OKLCH	oklch(33.41% 0.146 287.7)
XYZ	xyz(5.6396, 3.2220, 19.0598)
Luminance	0.0322 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371F7B #637B1F

analogous

#1F357B #371F7B #651F7B

triadic

#371F7B #7B371F #1F7B37

tetradic

#371F7B #7B1F35 #637B1F #1F7B65

square

#371F7B #7B1F35 #637B1F #1F7B65

split-complementary

#371F7B #7B651F #357B1F

monochromatic

#0B0619 #21134A #371F7B #4D2BAC #6944D0

Accessibility & contrast

On white

12.77

#371F7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#371F7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371F7B

12.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371F7B	#FFFFFF	#000000	##FFFFFF
##371F7B	1.00	12.77	1.64	12.77
#FFFFFF	12.77	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347E

Deuteranopia (green-blind)

#003079

Tritanopia (blue-blind)

#1C384B

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #371f7b;
/* rgb */ color: rgb(55, 31, 123);
/* oklch */ color: oklch(33.4% 0.146 287.7);

Tailwind

colors: {
  custom: {
    50: '#765da2',
    500: '#371f7b',
    950: '#000000',
  },
}

SCSS

$custom: #371f7b;
$custom-light: #765da2;
$custom-dark: #000000;

JSON

{
  "hex": "#371f7b",
  "rgb": {
    "r": 55,
    "g": 31,
    "b": 123
  },
  "hsl": {
    "h": 255.652,
    "s": 59.74,
    "l": 30.196
  },
  "oklch": {
    "l": 0.33405,
    "c": 0.14557,
    "h": 287.7
  },
  "luminance": 0.03222
}

Semantic roles & 50–950 ramp

primary

#371F7B

secondary

#93AE48

accent

#E345BA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #371F7B

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

Preview Lab → · Contrast checker → · Palette generator →