#370B3B#370B3B

#370B3B is a dark, moderate purple. Relative luminance 0.014; OKLCH L 25.2% C 0.096 H 324.3°. Best body text is #FFFFFF at 16.49:1 contrast (WCAG AA passes).

Color values

HEX	#370B3B
RGB	rgb(55, 11, 59)
HSL	hsl(295, 69%, 14%)
HSV	hsv(295, 81%, 23%)
CMYK	cmyk(6.8%, 81.4%, 0%, 76.9%)
CIE-LAB	lab(11.74, 28.82, -20.12)
CIE-LCH	lch(11.74, 35.15, 325.08°)
OKLab	oklab(25.17% 0.078 -0.056)
OKLCH	oklch(25.17% 0.096 324.3)
XYZ	xyz(2.4846, 1.3675, 4.2699)
Luminance	0.0137 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370B3B #0F3B0B

analogous

#1F0B3B #370B3B #3B0B27

triadic

#370B3B #3B370B #0B3B37

tetradic

#370B3B #3B1F0B #0F3B0B #0B273B

square

#370B3B #3B1F0B #0F3B0B #0B273B

split-complementary

#370B3B #273B0B #0B3B1F

monochromatic

#18051A #18051A #370B3B #67156F #971EA2

Accessibility & contrast

On white

16.49

#370B3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#370B3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370B3B

16.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370B3B	#FFFFFF	#000000	##FFFFFF
##370B3B	1.00	16.49	1.27	16.49
#FFFFFF	16.49	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#011C3C

Deuteranopia (green-blind)

#14213A

Tritanopia (blue-blind)

#381322

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #370b3b;
/* rgb */ color: rgb(55, 11, 59);
/* oklch */ color: oklch(25.2% 0.096 324.3);

Tailwind

colors: {
  custom: {
    50: '#704f71',
    500: '#370b3b',
    950: '#000000',
  },
}

SCSS

$custom: #370b3b;
$custom-light: #704f71;
$custom-dark: #000000;

JSON

{
  "hex": "#370b3b",
  "rgb": {
    "r": 55,
    "g": 11,
    "b": 59
  },
  "hsl": {
    "h": 295,
    "s": 68.571,
    "l": 13.725
  },
  "oklch": {
    "l": 0.25167,
    "c": 0.09606,
    "h": 324.3
  },
  "luminance": 0.01367
}

Semantic roles & 50–950 ramp

primary

#370B3B

secondary

#31782A

accent

#EB3C4B

background

#F6F4F6

surface

#ECE7EC

border

#C7C3C7

text

#080207

muted

#7B787A

Preview Lab

Preview with #370B3B

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

Preview Lab → · Contrast checker → · Palette generator →