#371B66#371B66

#371B66 is a dark, vivid violet. Relative luminance 0.026; OKLCH L 30.9% C 0.124 H 295.3°. Best body text is #FFFFFF at 13.90:1 contrast (WCAG AA passes).

Color values

HEX	#371B66
RGB	rgb(55, 27, 102)
HSL	hsl(262, 58%, 25%)
HSV	hsv(262, 74%, 40%)
CMYK	cmyk(46.1%, 73.5%, 0%, 60%)
CIE-LAB	lab(18.17, 31.78, -39.15)
CIE-LCH	lch(18.17, 50.42, 309.08°)
OKLab	oklab(30.86% 0.0528 -0.112)
OKLCH	oklch(30.86% 0.124 295.3)
XYZ	xyz(4.3651, 2.5553, 12.8310)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371B66 #4A661B

analogous

#1B2466 #371B66 #5C1B66

triadic

#371B66 #66371B #1B6637

tetradic

#371B66 #661B24 #4A661B #1B665C

square

#371B66 #661B24 #4A661B #1B665C

split-complementary

#371B66 #665C1B #24661B

monochromatic

#0D0618 #1D0E36 #371B66 #512896 #6B35C7

Accessibility & contrast

On white

13.90

#371B66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#371B66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371B66

13.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371B66	#FFFFFF	#000000	##FFFFFF
##371B66	1.00	13.90	1.51	13.90
#FFFFFF	13.90	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D68

Deuteranopia (green-blind)

#002B64

Tritanopia (blue-blind)

#2A2E3E

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #371b66;
/* rgb */ color: rgb(55, 27, 102);
/* oklch */ color: oklch(30.9% 0.124 295.3);

Tailwind

colors: {
  custom: {
    50: '#735a92',
    500: '#371b66',
    950: '#000000',
  },
}

SCSS

$custom: #371b66;
$custom-light: #735a92;
$custom-dark: #000000;

JSON

{
  "hex": "#371b66",
  "rgb": {
    "r": 55,
    "g": 27,
    "b": 102
  },
  "hsl": {
    "h": 262.4,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.30855,
    "c": 0.12379,
    "h": 295.3
  },
  "luminance": 0.02555
}

Semantic roles & 50–950 ramp

primary

#371B66

secondary

#7A9B41

accent

#E146A8

background

#F7F5F9

surface

#EDE9F1

border

#C8C5CB

text

#08040D

muted

#7B797E

Preview Lab

Preview with #371B66

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

Preview Lab → · Contrast checker → · Palette generator →