#371D81#371D81

#371D81 is a dark, vivid violet. Relative luminance 0.033; OKLCH L 33.7% C 0.155 H 286.6°. Best body text is #FFFFFF at 12.69:1 contrast (WCAG AA passes).

Color values

HEX	#371D81
RGB	rgb(55, 29, 129)
HSL	hsl(256, 63%, 31%)
HSV	hsv(256, 78%, 51%)
CMYK	cmyk(57.4%, 77.5%, 0%, 49.4%)
CIE-LAB	lab(21.12, 38.84, -51.71)
CIE-LCH	lch(21.12, 64.67, 306.91°)
OKLab	oklab(33.73% 0.0445 -0.1488)
OKLCH	oklch(33.73% 0.155 286.6)
XYZ	xyz(5.9762, 3.2756, 21.0820)
Luminance	0.0328 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371D81 #67811D

analogous

#1D3581 #371D81 #691D81

triadic

#371D81 #81371D #1D8137

tetradic

#371D81 #811D35 #67811D #1D8169

square

#371D81 #811D35 #67811D #1D8169

split-complementary

#371D81 #81691D #35811D

monochromatic

#0C071D #22124F #371D81 #4C28B3 #6944D5

Accessibility & contrast

On white

12.69

#371D81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#371D81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371D81

12.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371D81	#FFFFFF	#000000	##FFFFFF
##371D81	1.00	12.69	1.66	12.69
#FFFFFF	12.69	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003584

Deuteranopia (green-blind)

#00307F

Tritanopia (blue-blind)

#16394E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #371d81;
/* rgb */ color: rgb(55, 29, 129);
/* oklch */ color: oklch(33.7% 0.155 286.6);

Tailwind

colors: {
  custom: {
    50: '#775ca7',
    500: '#371d81',
    950: '#000000',
  },
}

SCSS

$custom: #371d81;
$custom-light: #775ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#371d81",
  "rgb": {
    "r": 55,
    "g": 29,
    "b": 129
  },
  "hsl": {
    "h": 255.6,
    "s": 63.291,
    "l": 30.98
  },
  "oklch": {
    "l": 0.33729,
    "c": 0.15533,
    "h": 286.6
  },
  "luminance": 0.03276
}

Semantic roles & 50–950 ramp

primary

#371D81

secondary

#97B446

accent

#E641BB

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A040F

muted

#7C797F

Preview Lab

Preview with #371D81

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

Preview Lab → · Contrast checker → · Palette generator →