#370F5F#370F5F

#370F5F is a dark, vivid violet. Relative luminance 0.020; OKLCH L 28.7% C 0.130 H 300.9°. Best body text is #FFFFFF at 15.04:1 contrast (WCAG AA passes).

Color values

HEX	#370F5F
RGB	rgb(55, 15, 95)
HSL	hsl(270, 73%, 22%)
HSV	hsv(270, 84%, 37%)
CMYK	cmyk(42.1%, 84.2%, 0%, 62.7%)
CIE-LAB	lab(15.38, 35.87, -39.06)
CIE-LCH	lch(15.38, 53.03, 312.57°)
OKLab	oklab(28.69% 0.0667 -0.1116)
OKLCH	oklch(28.69% 0.13 300.9)
XYZ	xyz(3.8114, 1.9801, 11.0056)
Luminance	0.0198 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 4.35

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370F5F #375F0F

analogous

#0F0F5F #370F5F #5F0F5F

triadic

#370F5F #5F370F #0F5F37

tetradic

#370F5F #5F0F0F #375F0F #0F5F5F

square

#370F5F #5F0F0F #375F0F #0F5F5F

split-complementary

#370F5F #5F5F0F #0F5F0F

monochromatic

#0F041A #18072A #370F5F #561794 #7420C9

Accessibility & contrast

On white

15.04

#370F5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#370F5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370F5F

15.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370F5F	#FFFFFF	#000000	##FFFFFF
##370F5F	1.00	15.04	1.40	15.04
#FFFFFF	15.04	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002661

Deuteranopia (green-blind)

#00265D

Tritanopia (blue-blind)

#2E2537

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #370f5f;
/* rgb */ color: rgb(55, 15, 95);
/* oklch */ color: oklch(28.7% 0.130 300.9);

Tailwind

colors: {
  custom: {
    50: '#73538d',
    500: '#370f5f',
    950: '#000000',
  },
}

SCSS

$custom: #370f5f;
$custom-light: #73538d;
$custom-dark: #000000;

JSON

{
  "hex": "#370f5f",
  "rgb": {
    "r": 55,
    "g": 15,
    "b": 95
  },
  "hsl": {
    "h": 270,
    "s": 72.727,
    "l": 21.569
  },
  "oklch": {
    "l": 0.2869,
    "c": 0.13002,
    "h": 300.9
  },
  "luminance": 0.0198
}

Semantic roles & 50–950 ramp

primary

#370F5F

secondary

#659832

accent

#EF3894

background

#F7F4F8

surface

#EDE7F0

border

#C8C3CB

text

#08030C

muted

#7B787D

Preview Lab

Preview with #370F5F

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

Preview Lab → · Contrast checker → · Palette generator →