#37105B#37105B

#37105B is a dark, vivid violet. Relative luminance 0.019; OKLCH L 28.4% C 0.124 H 302.6°. Best body text is #FFFFFF at 15.13:1 contrast (WCAG AA passes).

Color values

HEX	#37105B
RGB	rgb(55, 16, 91)
HSL	hsl(271, 70%, 21%)
HSV	hsv(271, 82%, 36%)
CMYK	cmyk(39.6%, 82.4%, 0%, 64.3%)
CIE-LAB	lab(15.16, 34.36, -36.75)
CIE-LCH	lch(15.16, 50.31, 313.08°)
OKLab	oklab(28.42% 0.067 -0.1048)
OKLCH	oklch(28.42% 0.124 302.6)
XYZ	xyz(3.6487, 1.9381, 10.0774)
Luminance	0.0194 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 4.46

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37105B #345B10

analogous

#11105B #37105B #5B1059

triadic

#37105B #5B3710 #105B37

tetradic

#37105B #5B1110 #345B10 #10595B

square

#37105B #5B1110 #345B10 #10595B

split-complementary

#37105B #595B10 #105B11

monochromatic

#10051A #180727 #37105B #56198F #7622C3

Accessibility & contrast

On white

15.13

#37105B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#37105B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37105B

15.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37105B	#FFFFFF	#000000	##FFFFFF
##37105B	1.00	15.13	1.39	15.13
#FFFFFF	15.13	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255D

Deuteranopia (green-blind)

#00265A

Tritanopia (blue-blind)

#2F2435

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #37105b;
/* rgb */ color: rgb(55, 16, 91);
/* oklch */ color: oklch(28.4% 0.124 302.6);

Tailwind

colors: {
  custom: {
    50: '#72538a',
    500: '#37105b',
    950: '#000000',
  },
}

SCSS

$custom: #37105b;
$custom-light: #72538a;
$custom-dark: #000000;

JSON

{
  "hex": "#37105b",
  "rgb": {
    "r": 55,
    "g": 16,
    "b": 91
  },
  "hsl": {
    "h": 271.2,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.28417,
    "c": 0.12439,
    "h": 302.6
  },
  "luminance": 0.01938
}

Semantic roles & 50–950 ramp

primary

#37105B

secondary

#619433

accent

#ED3B90

background

#F7F4F8

surface

#EDE7F0

border

#C8C3CB

text

#08030C

muted

#7B787D

Preview Lab

Preview with #37105B

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

Preview Lab → · Contrast checker → · Palette generator →