#370D5C#370D5C

#370D5C is a dark, vivid violet. Relative luminance 0.019; OKLCH L 28.2% C 0.129 H 302.6°. Best body text is #FFFFFF at 15.28:1 contrast (WCAG AA passes).

Color values

HEX	#370D5C
RGB	rgb(55, 13, 92)
HSL	hsl(272, 75%, 21%)
HSV	hsv(272, 86%, 36%)
CMYK	cmyk(40.2%, 85.9%, 0%, 63.9%)
CIE-LAB	lab(14.80, 35.92, -37.99)
CIE-LCH	lch(14.80, 52.29, 313.39°)
OKLab	oklab(28.2% 0.0694 -0.1085)
OKLCH	oklch(28.2% 0.129 302.6)
XYZ	xyz(3.6508, 1.8728, 10.2923)
Luminance	0.0187 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 4.37

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370D5C #325C0D

analogous

#100D5C #370D5C #5C0D59

triadic

#370D5C #5C370D #0D5C37

tetradic

#370D5C #5C100D #325C0D #0D595C

square

#370D5C #5C100D #325C0D #0D595C

split-complementary

#370D5C #595C0D #0D5C10

monochromatic

#10041B #170526 #370D5C #571592 #771CC7

Accessibility & contrast

On white

15.28

#370D5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#370D5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370D5C

15.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370D5C	#FFFFFF	#000000	##FFFFFF
##370D5C	1.00	15.28	1.37	15.28
#FFFFFF	15.28	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255E

Deuteranopia (green-blind)

#00255A

Tritanopia (blue-blind)

#2F2335

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #370d5c;
/* rgb */ color: rgb(55, 13, 92);
/* oklch */ color: oklch(28.2% 0.129 302.6);

Tailwind

colors: {
  custom: {
    50: '#72528b',
    500: '#370d5c',
    950: '#000000',
  },
}

SCSS

$custom: #370d5c;
$custom-light: #72528b;
$custom-dark: #000000;

JSON

{
  "hex": "#370d5c",
  "rgb": {
    "r": 55,
    "g": 13,
    "b": 92
  },
  "hsl": {
    "h": 271.899,
    "s": 75.238,
    "l": 20.588
  },
  "oklch": {
    "l": 0.28199,
    "c": 0.12877,
    "h": 302.6
  },
  "luminance": 0.01873
}

Semantic roles & 50–950 ramp

primary

#370D5C

secondary

#5F962F

accent

#F2368E

background

#F7F4F8

surface

#EDE7F0

border

#C8C3CB

text

#08020C

muted

#7B787D

Preview Lab

Preview with #370D5C

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

Preview Lab → · Contrast checker → · Palette generator →