#371D78#371D78

#371D78 is a dark, vivid violet. Relative luminance 0.030; OKLCH L 32.8% C 0.144 H 289.0°. Best body text is #FFFFFF at 13.05:1 contrast (WCAG AA passes).

Color values

HEX	#371D78
RGB	rgb(55, 29, 120)
HSL	hsl(257, 61%, 29%)
HSV	hsv(257, 76%, 47%)
CMYK	cmyk(54.2%, 75.8%, 0%, 52.9%)
CIE-LAB	lab(20.23, 36.10, -47.44)
CIE-LCH	lch(20.23, 59.61, 307.27°)
OKLab	oklab(32.84% 0.0468 -0.1363)
OKLCH	oklch(32.84% 0.144 289)
XYZ	xyz(5.4041, 3.0468, 18.0690)
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

#371D78 #5E781D

analogous

#1D3178 #371D78 #651D78

triadic

#371D78 #78371D #1D7837

tetradic

#371D78 #781D31 #5E781D #1D7865

square

#371D78 #781D31 #5E781D #1D7865

split-complementary

#371D78 #78651D #31781D

monochromatic

#0B0619 #201147 #371D78 #4E29A9 #683FD1

Accessibility & contrast

On white

13.05

#371D78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#371D78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371D78

13.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371D78	#FFFFFF	#000000	##FFFFFF
##371D78	1.00	13.05	1.61	13.05
#FFFFFF	13.05	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337B

Deuteranopia (green-blind)

#002E76

Tritanopia (blue-blind)

#1F3549

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #371d78;
/* rgb */ color: rgb(55, 29, 120);
/* oklch */ color: oklch(32.8% 0.144 289.0);

Tailwind

colors: {
  custom: {
    50: '#755ca0',
    500: '#371d78',
    950: '#000000',
  },
}

SCSS

$custom: #371d78;
$custom-light: #755ca0;
$custom-dark: #000000;

JSON

{
  "hex": "#371d78",
  "rgb": {
    "r": 55,
    "g": 29,
    "b": 120
  },
  "hsl": {
    "h": 257.143,
    "s": 61.074,
    "l": 29.216
  },
  "oklch": {
    "l": 0.32835,
    "c": 0.14414,
    "h": 289
  },
  "luminance": 0.03047
}

Semantic roles & 50–950 ramp

primary

#371D78

secondary

#8EAC45

accent

#E444B6

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040F

muted

#7B797E

Preview Lab

Preview with #371D78

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

Preview Lab → · Contrast checker → · Palette generator →