#330D0A#330D0A

#330D0A is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.4% C 0.062 H 27.7°. Best body text is #FFFFFF at 17.46:1 contrast (WCAG AA passes).

Color values

HEX	#330D0A
RGB	rgb(51, 13, 10)
HSL	hsl(4, 67%, 12%)
HSV	hsv(4, 80%, 20%)
CMYK	cmyk(0%, 74.5%, 80.4%, 80%)
CIE-LAB	lab(9.11, 18.96, 9.97)
CIE-LCH	lch(9.11, 21.43, 27.74°)
OKLab	oklab(22.37% 0.0551 0.0289)
OKLCH	oklch(22.37% 0.062 27.7)
XYZ	xyz(1.5641, 1.0138, 0.4004)
Luminance	0.0101 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#330D0A #0A3033

analogous

#330A1C #330D0A #33220A

triadic

#330D0A #0A330D #0D0A33

tetradic

#330D0A #1C330A #0A3033 #220A33

square

#330D0A #1C330A #0A3033 #220A33

split-complementary

#330D0A #0A3322 #0A1C33

monochromatic

#1A0705 #1A0705 #330D0A #661A14 #99271E

Accessibility & contrast

On white

17.46

#330D0A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#330D0A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #330D0A

17.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##330D0A	#FFFFFF	#000000	##FFFFFF
##330D0A	1.00	17.46	1.20	17.46
#FFFFFF	17.46	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171509

Deuteranopia (green-blind)

#211D09

Tritanopia (blue-blind)

#39050D

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #330d0a;
/* rgb */ color: rgb(51, 13, 10);
/* oklch */ color: oklch(22.4% 0.062 27.7);

Tailwind

colors: {
  custom: {
    50: '#6e4e4b',
    500: '#330d0a',
    950: '#000000',
  },
}

SCSS

$custom: #330d0a;
$custom-light: #6e4e4b;
$custom-dark: #000000;

JSON

{
  "hex": "#330d0a",
  "rgb": {
    "r": 51,
    "g": 13,
    "b": 10
  },
  "hsl": {
    "h": 4.39,
    "s": 67.213,
    "l": 11.961
  },
  "oklch": {
    "l": 0.22369,
    "c": 0.06225,
    "h": 27.7
  },
  "luminance": 0.01014
}

Semantic roles & 50–950 ramp

primary

#330D0A

secondary

#286B70

accent

#DDEA3E

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #330D0A

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

Preview Lab → · Contrast checker → · Palette generator →