#370F5A#370F5A

#370F5A is a dark, vivid violet. Relative luminance 0.019; OKLCH L 28.2% C 0.124 H 303.2°. Best body text is #FFFFFF at 15.24:1 contrast (WCAG AA passes).

Color values

HEX	#370F5A
RGB	rgb(55, 15, 90)
HSL	hsl(272, 71%, 21%)
HSV	hsv(272, 83%, 35%)
CMYK	cmyk(38.9%, 83.3%, 0%, 64.7%)
CIE-LAB	lab(14.91, 34.55, -36.48)
CIE-LCH	lch(14.91, 50.24, 313.44°)
OKLab	oklab(28.21% 0.0682 -0.104)
OKLCH	oklch(28.21% 0.124 303.2)
XYZ	xyz(3.5914, 1.8921, 9.8469)
Luminance	0.0189 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 4.48

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370F5A #325A0F

analogous

#110F5A #370F5A #5A0F57

triadic

#370F5A #5A370F #0F5A37

tetradic

#370F5A #5A110F #325A0F #0F575A

square

#370F5A #5A110F #325A0F #0F575A

split-complementary

#370F5A #575A0F #0F5A11

monochromatic

#10041A #170626 #370F5A #57188E #7720C3

Accessibility & contrast

On white

15.24

#370F5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#370F5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370F5A

15.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370F5A	#FFFFFF	#000000	##FFFFFF
##370F5A	1.00	15.24	1.38	15.24
#FFFFFF	15.24	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255C

Deuteranopia (green-blind)

#002559

Tritanopia (blue-blind)

#302334

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #370f5a;
/* rgb */ color: rgb(55, 15, 90);
/* oklch */ color: oklch(28.2% 0.124 303.2);

Tailwind

colors: {
  custom: {
    50: '#725389',
    500: '#370f5a',
    950: '#000000',
  },
}

SCSS

$custom: #370f5a;
$custom-light: #725389;
$custom-dark: #000000;

JSON

{
  "hex": "#370f5a",
  "rgb": {
    "r": 55,
    "g": 15,
    "b": 90
  },
  "hsl": {
    "h": 272,
    "s": 71.429,
    "l": 20.588
  },
  "oklch": {
    "l": 0.28214,
    "c": 0.1244,
    "h": 303.2
  },
  "luminance": 0.01892
}

Semantic roles & 50–950 ramp

primary

#370F5A

secondary

#5F9431

accent

#EE3A8E

background

#F7F4F8

surface

#EDE7F0

border

#C8C3CB

text

#08020C

muted

#7B787D

Preview Lab

Preview with #370F5A

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

Preview Lab → · Contrast checker → · Palette generator →