#370F5C#370F5C

#370F5C is a dark, vivid violet. Relative luminance 0.019; OKLCH L 28.4% C 0.127 H 302.3°. Best body text is #FFFFFF at 15.16:1 contrast (WCAG AA passes).

Color values

HEX	#370F5C
RGB	rgb(55, 15, 92)
HSL	hsl(271, 72%, 21%)
HSV	hsv(271, 84%, 36%)
CMYK	cmyk(40.2%, 83.7%, 0%, 63.9%)
CIE-LAB	lab(15.10, 35.08, -37.52)
CIE-LCH	lch(15.10, 51.36, 313.07°)
OKLab	oklab(28.4% 0.0676 -0.1071)
OKLCH	oklch(28.4% 0.127 302.3)
XYZ	xyz(3.6777, 1.9266, 10.3013)
Luminance	0.0193 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 4.39

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370F5C #345C0F

analogous

#100F5C #370F5C #5C0F5A

triadic

#370F5C #5C370F #0F5C37

tetradic

#370F5C #5C100F #345C0F #0F5A5C

square

#370F5C #5C100F #345C0F #0F5A5C

split-complementary

#370F5C #5A5C0F #0F5C10

monochromatic

#10041A #180627 #370F5C #561891 #7620C5

Accessibility & contrast

On white

15.16

#370F5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#370F5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370F5C

15.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370F5C	#FFFFFF	#000000	##FFFFFF
##370F5C	1.00	15.16	1.39	15.16
#FFFFFF	15.16	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255E

Deuteranopia (green-blind)

#00265B

Tritanopia (blue-blind)

#2F2435

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #370f5c;
/* rgb */ color: rgb(55, 15, 92);
/* oklch */ color: oklch(28.4% 0.127 302.3);

Tailwind

colors: {
  custom: {
    50: '#72538b',
    500: '#370f5c',
    950: '#000000',
  },
}

SCSS

$custom: #370f5c;
$custom-light: #72538b;
$custom-dark: #000000;

JSON

{
  "hex": "#370f5c",
  "rgb": {
    "r": 55,
    "g": 15,
    "b": 92
  },
  "hsl": {
    "h": 271.169,
    "s": 71.963,
    "l": 20.98
  },
  "oklch": {
    "l": 0.28403,
    "c": 0.12665,
    "h": 302.3
  },
  "luminance": 0.01927
}

Semantic roles & 50–950 ramp

primary

#370F5C

secondary

#619531

accent

#EF3990

background

#F7F4F8

surface

#EDE7F0

border

#C8C3CB

text

#08030C

muted

#7B787D

Preview Lab

Preview with #370F5C

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

Preview Lab → · Contrast checker → · Palette generator →