#371B7D#371B7D

#371B7D is a dark, vivid violet. Relative luminance 0.031; OKLCH L 33.1% C 0.153 H 288.0°. Best body text is #FFFFFF at 13.00:1 contrast (WCAG AA passes).

Color values

HEX	#371B7D
RGB	rgb(55, 27, 125)
HSL	hsl(257, 64%, 30%)
HSV	hsv(257, 78%, 49%)
CMYK	cmyk(56%, 78.4%, 0%, 51%)
CIE-LAB	lab(20.35, 38.67, -50.44)
CIE-LCH	lch(20.35, 63.56, 307.48°)
OKLab	oklab(33.07% 0.0472 -0.1451)
OKLCH	oklch(33.07% 0.153 288)
XYZ	xyz(5.6681, 3.0765, 19.6932)
Luminance	0.0308 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371B7D #617D1B

analogous

#1B307D #371B7D #681B7D

triadic

#371B7D #7D371B #1B7D37

tetradic

#371B7D #7D1B30 #617D1B #1B7D68

square

#371B7D #7D1B30 #617D1B #1B7D68

split-complementary

#371B7D #7D681B #307D1B

monochromatic

#0B0519 #21104B #371B7D #4D26AF #693DD5

Accessibility & contrast

On white

13.00

#371B7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#371B7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371B7D

13.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371B7D	#FFFFFF	#000000	##FFFFFF
##371B7D	1.00	13.00	1.62	13.00
#FFFFFF	13.00	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	13.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003380

Deuteranopia (green-blind)

#002E7B

Tritanopia (blue-blind)

#1A364B

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #371b7d;
/* rgb */ color: rgb(55, 27, 125);
/* oklch */ color: oklch(33.1% 0.153 288.0);

Tailwind

colors: {
  custom: {
    50: '#765ba4',
    500: '#371b7d',
    950: '#000000',
  },
}

SCSS

$custom: #371b7d;
$custom-light: #765ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#371b7d",
  "rgb": {
    "r": 55,
    "g": 27,
    "b": 125
  },
  "hsl": {
    "h": 257.143,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.33067,
    "c": 0.15256,
    "h": 288
  },
  "luminance": 0.03077
}

Semantic roles & 50–950 ramp

primary

#371B7D

secondary

#91B143

accent

#E740B8

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #371B7D

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

Preview Lab → · Contrast checker → · Palette generator →