#370B33#370B33

#370B33 is a very dark, moderate purple. Relative luminance 0.013; OKLCH L 24.6% C 0.088 H 331.8°. Best body text is #FFFFFF at 16.69:1 contrast (WCAG AA passes).

Color values

HEX	#370B33
RGB	rgb(55, 11, 51)
HSL	hsl(305, 67%, 13%)
HSV	hsv(305, 80%, 22%)
CMYK	cmyk(0%, 80%, 7.3%, 78.4%)
CIE-LAB	lab(11.21, 27.18, -15.19)
CIE-LCH	lch(11.21, 31.14, 330.81°)
OKLab	oklab(24.62% 0.0778 -0.0417)
OKLCH	oklch(24.62% 0.088 331.8)
XYZ	xyz(2.2928, 1.2908, 3.2597)
Luminance	0.0129 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370B33 #0B370F

analogous

#250B37 #370B33 #370B1D

triadic

#370B33 #33370B #0B3337

tetradic

#370B33 #37250B #0B370F #0B1D37

square

#370B33 #37250B #0B370F #0B1D37

split-complementary

#370B33 #1D370B #0B3725

monochromatic

#1A0518 #1A0518 #370B33 #6A1562 #9D1F92

Accessibility & contrast

On white

16.69

#370B33 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#370B33 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370B33

16.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370B33	#FFFFFF	#000000	##FFFFFF
##370B33	1.00	16.69	1.26	16.69
#FFFFFF	16.69	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#081A34

Deuteranopia (green-blind)

#182032

Tritanopia (blue-blind)

#3A101D

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #370b33;
/* rgb */ color: rgb(55, 11, 51);
/* oklch */ color: oklch(24.6% 0.088 331.8);

Tailwind

colors: {
  custom: {
    50: '#704f6b',
    500: '#370b33',
    950: '#000000',
  },
}

SCSS

$custom: #370b33;
$custom-light: #704f6b;
$custom-dark: #000000;

JSON

{
  "hex": "#370b33",
  "rgb": {
    "r": 55,
    "g": 11,
    "b": 51
  },
  "hsl": {
    "h": 305.455,
    "s": 66.667,
    "l": 12.941
  },
  "oklch": {
    "l": 0.24616,
    "c": 0.08828,
    "h": 331.8
  },
  "luminance": 0.01291
}

Semantic roles & 50–950 ramp

primary

#370B33

secondary

#2A7431

accent

#EA4E3E

background

#F6F4F6

surface

#ECE7EB

border

#C7C3C6

text

#080206

muted

#7B787A

Preview Lab

Preview with #370B33

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

Preview Lab → · Contrast checker → · Palette generator →