#370B56#370B56

#370B56 is a dark, vivid violet. Relative luminance 0.017; OKLCH L 27.4% C 0.124 H 306.0°. Best body text is #FFFFFF at 15.62:1 contrast (WCAG AA passes).

Color values

HEX	#370B56
RGB	rgb(55, 11, 86)
HSL	hsl(275, 77%, 19%)
HSV	hsv(275, 87%, 34%)
CMYK	cmyk(36%, 87.2%, 0%, 66.3%)
CIE-LAB	lab(13.96, 35.18, -35.32)
CIE-LCH	lch(13.96, 49.85, 314.89°)
OKLab	oklab(27.44% 0.073 -0.1006)
OKLCH	oklch(27.44% 0.124 306)
XYZ	xyz(3.3746, 1.7235, 8.9572)
Luminance	0.0172 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370B56 #2A560B

analogous

#120B56 #370B56 #560B50

triadic

#370B56 #56370B #0B5637

tetradic

#370B56 #56120B #2A560B #0B5056

square

#370B56 #56120B #2A560B #0B5056

split-complementary

#370B56 #50560B #0B5612

monochromatic

#11031B #140420 #370B56 #5A128C #7C19C3

Accessibility & contrast

On white

15.62

#370B56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#370B56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370B56

15.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370B56	#FFFFFF	#000000	##FFFFFF
##370B56	1.00	15.62	1.34	15.62
#FFFFFF	15.62	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002258

Deuteranopia (green-blind)

#002455

Tritanopia (blue-blind)

#311F31

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #370b56;
/* rgb */ color: rgb(55, 11, 86);
/* oklch */ color: oklch(27.4% 0.124 306.0);

Tailwind

colors: {
  custom: {
    50: '#725186',
    500: '#370b56',
    950: '#000000',
  },
}

SCSS

$custom: #370b56;
$custom-light: #725186;
$custom-dark: #000000;

JSON

{
  "hex": "#370b56",
  "rgb": {
    "r": 55,
    "g": 11,
    "b": 86
  },
  "hsl": {
    "h": 275.2,
    "s": 77.32,
    "l": 19.02
  },
  "oklch": {
    "l": 0.27438,
    "c": 0.12431,
    "h": 306
  },
  "luminance": 0.01723
}

Semantic roles & 50–950 ramp

primary

#370B56

secondary

#56912B

accent

#F43483

background

#F7F4F8

surface

#EDE7EF

border

#C8C3CA

text

#08020B

muted

#7B787C

Preview Lab

Preview with #370B56

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

Preview Lab → · Contrast checker → · Palette generator →