#371B79#371B79

#371B79 is a dark, vivid violet. Relative luminance 0.030; OKLCH L 32.7% C 0.148 H 289.1°. Best body text is #FFFFFF at 13.16:1 contrast (WCAG AA passes).

Color values

HEX	#371B79
RGB	rgb(55, 27, 121)
HSL	hsl(258, 64%, 29%)
HSV	hsv(258, 78%, 47%)
CMYK	cmyk(54.5%, 77.7%, 0%, 52.5%)
CIE-LAB	lab(19.95, 37.47, -48.54)
CIE-LCH	lch(19.95, 61.32, 307.67°)
OKLab	oklab(32.67% 0.0483 -0.1395)
OKLCH	oklch(32.67% 0.148 289.1)
XYZ	xyz(5.4177, 2.9763, 18.3745)
Luminance	0.0298 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371B79 #5D791B

analogous

#1B2E79 #371B79 #661B79

triadic

#371B79 #79371B #1B7937

tetradic

#371B79 #791B2E #5D791B #1B7966

square

#371B79 #791B2E #5D791B #1B7966

split-complementary

#371B79 #79661B #2E791B

monochromatic

#0B0619 #201047 #371B79 #4E26AB #683BD3

Accessibility & contrast

On white

13.16

#371B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#371B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371B79

13.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371B79	#FFFFFF	#000000	##FFFFFF
##371B79	1.00	13.16	1.60	13.16
#FFFFFF	13.16	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327C

Deuteranopia (green-blind)

#002E77

Tritanopia (blue-blind)

#1E3549

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #371b79;
/* rgb */ color: rgb(55, 27, 121);
/* oklch */ color: oklch(32.7% 0.148 289.1);

Tailwind

colors: {
  custom: {
    50: '#765ba1',
    500: '#371b79',
    950: '#000000',
  },
}

SCSS

$custom: #371b79;
$custom-light: #765ba1;
$custom-dark: #000000;

JSON

{
  "hex": "#371b79",
  "rgb": {
    "r": 55,
    "g": 27,
    "b": 121
  },
  "hsl": {
    "h": 257.872,
    "s": 63.514,
    "l": 29.02
  },
  "oklch": {
    "l": 0.32666,
    "c": 0.14766,
    "h": 289.1
  },
  "luminance": 0.02977
}

Semantic roles & 50–950 ramp

primary

#371B79

secondary

#8DAD43

accent

#E741B5

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#09040F

muted

#7B797F

Preview Lab

Preview with #371B79

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

Preview Lab → · Contrast checker → · Palette generator →